Minor typo fixes

drivers/input/ads7843e.c

@@ -79,7 +79,7 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
-/* This is a value for the threshold that guantees a big difference on the
+/* This is a value for the threshold that guarantees a big difference on the
  * first pendown (but can't overflow).
  */
 

drivers/input/ads7843e.h

@@ -108,7 +108,7 @@
 
 /* This describes the state of one contact */
 
-enum ads7843e_contact_3
+enum ads7843e_contact_e
 {
   CONTACT_NONE = 0,                    /* No contact */
   CONTACT_DOWN,                        /* First contact */