libwsbm: enable wsbm compiling for Baytrail platform

BZ: 96355

On baytrail platform, vp8 decoding is done by VXD.
While VXD decoding is using ttm as buffer manager,
there is no dependency on IMG gfx for wsbm compiling.
Signed-off-by: Fei Jiang <[email protected]>

Change-Id: Ic3671dc6369a64a4558e39bae333a78c3c60b5ad
Reviewed-on: http://android.intel.com:8080/98806
Reviewed-by: Ding, Haitao <[email protected]>
Tested-by: Ding, Haitao <[email protected]>
Reviewed-by: buildbot <[email protected]>
Tested-by: buildbot <[email protected]>
diff --git a/src/Android.mk b/src/Android.mk
index f13d385..3232efe 100644
--- a/src/Android.mk
+++ b/src/Android.mk
@@ -1,7 +1,5 @@
 LOCAL_PATH:= $(call my-dir)
 
-ifeq ($(ENABLE_IMG_GRAPHICS),true)
-
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES:=          \
    wsbm_driver.c           \
@@ -39,5 +37,3 @@
    wsbm_priv.h         \
    wsbm_util.h
 include $(BUILD_COPY_HEADERS)
-
-endif