hwc2: Add LOCAL_VINTF_FRAGMENTS for composer and IDisplayConfig

Move composer, IDisplayConfig to LOCAL_VINTF_FRAGMENTS to remove
cross-component dependency for device specific manifest.

Change-Id: Iaa3cc522b34c9e9e7200c5effbd9816549a67131
diff --git a/sdm/libs/hwc2/Android.mk b/sdm/libs/hwc2/Android.mk
index 306ff72..b011642 100644
--- a/sdm/libs/hwc2/Android.mk
+++ b/sdm/libs/hwc2/Android.mk
@@ -64,6 +64,7 @@
                                  display_null.cpp \
                                  hwc_socket_handler.cpp \
                                  hwc_buffer_allocator.cpp
+LOCAL_VINTF_FRAGMENTS         := android.hardware.graphics.composer-qti-display.xml
 
 include $(BUILD_SHARED_LIBRARY)
 endif