Move shared data to shared location

Storing vp8_bilinear_filters_mmx in an mmx file and using it in an sse2
file is bad

Moving towards allowing --disable-mmx

Change-Id: I20493b35bdedcdcfc0915e6f05fdbe6c81a4a742
diff --git a/vp8/vp8_common.mk b/vp8/vp8_common.mk
index 5c15a3e..683af34 100644
--- a/vp8/vp8_common.mk
+++ b/vp8/vp8_common.mk
@@ -72,6 +72,8 @@
 VP8_COMMON_SRCS-$(CONFIG_POSTPROC_VISUALIZER) += common/textblit.c
 VP8_COMMON_SRCS-yes += common/treecoder.c
 
+VP8_COMMON_SRCS-$(ARCH_X86)$(ARCH_X86_64) += common/x86/filter_x86.c
+VP8_COMMON_SRCS-$(ARCH_X86)$(ARCH_X86_64) += common/x86/filter_x86.h
 VP8_COMMON_SRCS-$(ARCH_X86)$(ARCH_X86_64) += common/x86/idct_x86.h
 VP8_COMMON_SRCS-$(ARCH_X86)$(ARCH_X86_64) += common/x86/subpixel_x86.h
 VP8_COMMON_SRCS-$(ARCH_X86)$(ARCH_X86_64) += common/x86/recon_x86.h