display: Standardize log-tags for qcom display logs.

Change-Id: I75bc2d8db8d64994097d6b744f357c29c9a5717a
diff --git a/libqdutils/Android.mk b/libqdutils/Android.mk
index 61daeac..ed8bed0 100644
--- a/libqdutils/Android.mk
+++ b/libqdutils/Android.mk
@@ -6,8 +6,9 @@
 LOCAL_MODULE_TAGS             := optional
 LOCAL_SHARED_LIBRARIES        := $(common_libs)
 LOCAL_C_INCLUDES              := $(common_includes) $(kernel_includes)
-LOCAL_CFLAGS                  := $(common_flags)
+LOCAL_CFLAGS                  := $(common_flags) -DLOG_TAG=\"qdutils\"
 LOCAL_ADDITIONAL_DEPENDENCIES := $(common_deps)
 LOCAL_SRC_FILES               := profiler.cpp mdp_version.cpp \
                                  idle_invalidator.cpp
+
 include $(BUILD_SHARED_LIBRARY)