Fix bug 516 by recognizing yet another gcc macro that

indicates ARMv6.
Review URL: http://codereview.chromium.org/437056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3356 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/constants-arm.h

@@ -46,6 +46,7 @@
 #if defined(__ARM_ARCH_5T__) || \
     defined(__ARM_ARCH_5TE__) || \
     defined(__ARM_ARCH_6__) || \
+    defined(__ARM_ARCH_6J__) || \
     defined(__ARM_ARCH_7A__) || \
     defined(__ARM_ARCH_7__)
 # define CAN_USE_ARMV5_INSTRUCTIONS 1
@@ -53,6 +54,7 @@
 #endif
 
 #if defined(__ARM_ARCH_6__) || \
+    defined(__ARM_ARCH_6J__) || \
     defined(__ARM_ARCH_7A__) || \
     defined(__ARM_ARCH_7__)
 # define CAN_USE_ARMV6_INSTRUCTIONS 1