Fix some comments: Remove button description from GPIO interrupt handlers...

Fix some comments:  Remove button description from GPIO interrupt handlers that derive from the button interrupt handler

configs/sama5d3-xplained/src/sam_ethernet.c

@@ -317,7 +317,7 @@ xcpt_t arch_phy_irq(FAR const char *intf, xcpt_t handler, phy_enable_t *enable)
 
   flags = irqsave();
 
-  /* Get the old button interrupt handler and save the new one */
+  /* Get the old interrupt handler and save the new one */
 
   oldhandler = *phandler;
   *phandler = handler;
@@ -350,7 +350,7 @@ xcpt_t arch_phy_irq(FAR const char *intf, xcpt_t handler, phy_enable_t *enable)
       *enable = enabler;
     }
 
-  /* Return the old button handler (so that it can be restored) */
+  /* Return the old handler (so that it can be restored) */
 
   irqrestore(flags);
   return oldhandler;

configs/sama5d3-xplained/src/sam_usb.c

@@ -486,7 +486,7 @@ xcpt_t sam_setup_overcurrent(xcpt_t handler)
 
   flags = irqsave();
 
-  /* Get the old button interrupt handler and save the new one */
+  /* Get the old interrupt handler and save the new one */
 
   oldhandler  = g_ochandler;
   g_ochandler = handler;
@@ -497,7 +497,7 @@ xcpt_t sam_setup_overcurrent(xcpt_t handler)
   (void)irq_attach(IRQ_USBBC_VBUS_OVERCURRENT, handler);
   sam_pioirqenable(IRQ_USBBC_VBUS_OVERCURRENT);
 
-  /* Return the old button handler (so that it can be restored) */
+  /* Return the old handler (so that it can be restored) */
 
   irqrestore(flags);
   return oldhandler;

configs/sama5d3x-ek/src/sam_ethernet.c

@@ -317,7 +317,7 @@ xcpt_t arch_phy_irq(FAR const char *intf, xcpt_t handler, phy_enable_t *enable)
 
   flags = irqsave();
 
-  /* Get the old button interrupt handler and save the new one */
+  /* Get the old interrupt handler and save the new one */
 
   oldhandler = *phandler;
   *phandler = handler;
@@ -350,7 +350,7 @@ xcpt_t arch_phy_irq(FAR const char *intf, xcpt_t handler, phy_enable_t *enable)
       *enable = enabler;
     }
 
-  /* Return the old button handler (so that it can be restored) */
+  /* Return the old handler (so that it can be restored) */
 
   irqrestore(flags);
   return oldhandler;

configs/sama5d3x-ek/src/sam_usb.c

@@ -486,7 +486,7 @@ xcpt_t sam_setup_overcurrent(xcpt_t handler)
 
   flags = irqsave();
 
-  /* Get the old button interrupt handler and save the new one */
+  /* Get the old interrupt handler and save the new one */
 
   oldhandler  = g_ochandler;
   g_ochandler = handler;
@@ -497,7 +497,7 @@ xcpt_t sam_setup_overcurrent(xcpt_t handler)
   (void)irq_attach(IRQ_USBBC_VBUS_OVERCURRENT, handler);
   sam_pioirqenable(IRQ_USBBC_VBUS_OVERCURRENT);
 
-  /* Return the old button handler (so that it can be restored) */
+  /* Return the old handler (so that it can be restored) */
 
   irqrestore(flags);
   return oldhandler;

configs/sama5d4-ek/src/sam_ethernet.c

@@ -286,7 +286,7 @@ xcpt_t arch_phy_irq(FAR const char *intf, xcpt_t handler, phy_enable_t *enable)
 
   flags = irqsave();
 
-  /* Get the old button interrupt handler and save the new one */
+  /* Get the old interrupt handler and save the new one */
 
   oldhandler = *phandler;
   *phandler  = handler;
@@ -319,7 +319,7 @@ xcpt_t arch_phy_irq(FAR const char *intf, xcpt_t handler, phy_enable_t *enable)
       *enable = enabler;
     }
 
-  /* Return the old button handler (so that it can be restored) */
+  /* Return the old handler (so that it can be restored) */
 
   irqrestore(flags);
   return oldhandler;

configs/sama5d4-ek/src/sam_usb.c

@@ -487,7 +487,7 @@ xcpt_t sam_setup_overcurrent(xcpt_t handler)
 
   flags = irqsave();
 
-  /* Get the old button interrupt handler and save the new one */
+  /* Get the old interrupt handler and save the new one */
 
   oldhandler  = g_ochandler;
   g_ochandler = handler;
@@ -498,7 +498,7 @@ xcpt_t sam_setup_overcurrent(xcpt_t handler)
   (void)irq_attach(IRQ_USBBC_VBUS_OVERCURRENT, handler);
   sam_pioirqenable(IRQ_USBBC_VBUS_OVERCURRENT);
 
-  /* Return the old button handler (so that it can be restored) */
+  /* Return the old handler (so that it can be restored) */
 
   irqrestore(flags);
   return oldhandler;