Relax requirement from VFP3 to VFP2 where possible.

build/common.gypi

Index: build/common.gypi
diff --git a/build/common.gypi b/build/common.gypi
index b5f991ebfb033edd283c73cc79dc6f78391cdd16..6c67d60f9b2ccf6d183e94fa13bbcca113bf65d4 100644
--- a/build/common.gypi
+++ b/build/common.gypi
@@ -48,7 +48,8 @@
     # both for the snapshot and for the ARM target. Leaving the default value
     # of 'false' will avoid VFP instructions in the snapshot and use CPU feature
     # probing when running on the target.
-    'v8_can_use_vfp_instructions%': 'false',
+    'v8_can_use_vfp2_instructions%': 'false',
+    'v8_can_use_vfp3_instructions%': 'false',
 
     # Similar to vfp but on MIPS.
     'v8_can_use_fpu_instructions%': 'true',
@@ -132,9 +133,14 @@
               'CAN_USE_UNALIGNED_ACCESSES=0',
             ],
           }],
-          [ 'v8_can_use_vfp_instructions=="true"', {
+          [ 'v8_can_use_vfp2_instructions=="true"', {
             'defines': [
-              'CAN_USE_VFP_INSTRUCTIONS',
+              'CAN_USE_VFP2_INSTRUCTIONS',
+            ],
+          }],
+          [ 'v8_can_use_vfp3_instructions=="true"', {
+            'defines': [
+              'CAN_USE_VFP3_INSTRUCTIONS',
             ],
           }],
           [ 'v8_use_arm_eabi_hardfloat=="true"', {