display: Change LOCAL_MODULE_PATH to LOCAL_MODULE_RELATIVE_PATH

To comply with multi-arch build system changes for 64-bit support,
LOCAL_MODULE_RELATIVE_PATH needs to be used.

Drop explicit use of LOCAL_MODULE_PATH as its not needed, and
causes build system to overwrite one of multi-arch library
variants with the other arch variant.

Change-Id: I882de72ad2003f1e2bcc93fb63bad7377a84d31d
diff --git a/libmemtrack/Android.mk b/libmemtrack/Android.mk
index 306eb07..2fda0b7 100644
--- a/libmemtrack/Android.mk
+++ b/libmemtrack/Android.mk
@@ -18,7 +18,7 @@
 # hw/<POWERS_HARDWARE_MODULE_ID>.<ro.hardware>.so
 include $(CLEAR_VARS)
 
-LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
+LOCAL_MODULE_RELATIVE_PATH := hw
 LOCAL_C_INCLUDES += hardware/libhardware/include
 LOCAL_SHARED_LIBRARIES := liblog
 LOCAL_SRC_FILES := memtrack_msm.c kgsl.c