qcom/display: Update HALs

- Update the display HAL from Code Aurora Forum
- Add updated overlay library
- Enable HWC with basic video going through overlay
- Cleanup some files

Change-Id: I65c687c51be458cee71213c79e03eeda962d9086
diff --git a/libgenlock/Android.mk b/libgenlock/Android.mk
index 740d6ce..6ae8909 100644
--- a/libgenlock/Android.mk
+++ b/libgenlock/Android.mk
@@ -4,8 +4,7 @@
 LOCAL_PRELINK_MODULE := false
 LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)
 LOCAL_SHARED_LIBRARIES := liblog libcutils
-LOCAL_C_INCLUDES :=
-LOCAL_C_INCLUDES += hardware/qcom/display/libgralloc
+LOCAL_C_INCLUDES := hardware/qcom/display/libgralloc
 LOCAL_ADDITIONAL_DEPENDENCIES :=
 LOCAL_SRC_FILES := genlock.cpp
 LOCAL_CFLAGS:= -DLOG_TAG=\"libgenlock\"