Board has 20MHz crystal, not 10

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1199 42af7a65-404d-4744-a932-0658087f49c3

configs/us7032evb1/include/board.h

@@ -51,7 +51,7 @@
 
 /* Clocking *****************************************************************/
 
-#define SH1_CLOCK            10000000  /* 10 MHz */
+#define SH1_CLOCK            20000000  /* 20 MHz */
 
 /* LED definitions **********************************************************/