Modify the armv7-a target arch to not use NEON

To build for a target with NEON, use armv7-a-neon

Change-Id: I70d509287b04c0faebe44faf6c8ebb28a7360ff9
diff --git a/core/combo/arch/arm/armv7-a.mk b/core/combo/arch/arm/armv7-a.mk
index 7a3ecc4..0ca3ec6 100644
--- a/core/combo/arch/arm/armv7-a.mk
+++ b/core/combo/arch/arm/armv7-a.mk
@@ -7,8 +7,8 @@
 ARCH_ARM_HAVE_HALFWORD_MULTIPLY := true
 ARCH_ARM_HAVE_CLZ               := true
 ARCH_ARM_HAVE_FFS               := true
+ARCH_ARM_HAVE_ARMV7A            := true
 ARCH_ARM_HAVE_VFP               := true
-ARCH_ARM_HAVE_NEON              := true
 
 # Note: Hard coding the 'tune' value here is probably not ideal,
 # and a better solution should be found in the future.
@@ -16,7 +16,7 @@
 arch_variant_cflags := \
     -march=armv7-a \
     -mfloat-abi=softfp \
-    -mfpu=neon
+    -mfpu=vfpv3-d16
 
 arch_variant_ldflags := \
-	-Wl,--fix-cortex-a8
\ No newline at end of file
+	-Wl,--fix-cortex-a8