Fix whitespace issues.

board/mpc8641hpcn/init.S

@@ -177,4 +177,3 @@ law_entry:
 	stwu    r6, 0x20(r5)
 
 	blr
-

cpu/mpc86xx/start.S

@@ -1224,4 +1224,3 @@ secondary_cpu_setup:
 
 	/* Never Returns, Running in Linux Now */
 #endif
-