vp8 common: change 'HAVE_NEON_ASM' to 'HAVE_NEON' for compiling functions of NEON intrinsics.

Change-Id: I975e5eac16f8b623ff589f0ec072cdaff2183b04

vp8/common/arm/variance_arm.c

diff --git a/vp8/common/arm/variance_arm.c b/vp8/common/arm/variance_arm.c
index e3f7083..467a509 100644
--- a/vp8/common/arm/variance_arm.c
+++ b/vp8/common/arm/variance_arm.c
@@ -95,7 +95,7 @@
 #endif /* HAVE_MEDIA */
 
 
-#if HAVE_NEON_ASM
+#if HAVE_NEON
 
 extern unsigned int vp8_sub_pixel_variance16x16_neon_func
 (