This adds support for Cortex-A73 as an available target.

Differential Revision: http://reviews.llvm.org/D20865

llvm-svn: 271508
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index 7c9ea7d..43e911e 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -44,7 +44,7 @@
   enum ARMProcFamilyEnum {
     Others, CortexA5, CortexA7, CortexA8, CortexA9, CortexA12, CortexA15,
     CortexA17, CortexR4, CortexR4F, CortexR5, CortexR7, CortexM3,
-    CortexA32, CortexA35, CortexA53, CortexA57, CortexA72,
+    CortexA32, CortexA35, CortexA53, CortexA57, CortexA72, CortexA73,
     Krait, Swift, ExynosM1
   };
   enum ARMProcClassEnum {