ARC Fixes for 3.13

- Couple of fixes for recently added perf code
 - Build time extable sort
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Merge tag 'arc-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "These are couple of weeks old already, but I just couldn't get them to
  you earlier.

   - couple of fixes for recently added perf code
   - build time extable sort"

* tag 'arc-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: [perf] Fix a few thinkos
  ARC: Add guard macro to uapi/asm/unistd.h
  ARC: extable: Enable sorting at build time

scripts/sortextable.c

@@ -31,6 +31,10 @@
 #include <tools/be_byteshift.h>
 #include <tools/le_byteshift.h>
 
+#ifndef EM_ARCOMPACT
+#define EM_ARCOMPACT	93
+#endif
+
 #ifndef EM_AARCH64
 #define EM_AARCH64	183
 #endif
@@ -268,6 +272,7 @@ do_file(char const *const fname)
 	case EM_S390:
 		custom_sort = sort_relative_table;
 		break;
+	case EM_ARCOMPACT:
 	case EM_ARM:
 	case EM_AARCH64:
 	case EM_MIPS: