gralloc: Move to new directory

In preparation for the hidlization of gralloc.
Also delete obsolete libgralloc

Change-Id: Id657f985cff1bdbf86c781efc52e8bda4e3d27b4
diff --git a/include/Android.mk b/include/Android.mk
index a72d5c3..6e529cd 100644
--- a/include/Android.mk
+++ b/include/Android.mk
@@ -19,6 +19,7 @@
                                  $(display_top)/libqservice \
                                  $(display_top)/gpu_tonemapper \
                                  $(display_top)/sdm/include \
+                                 $(display_top)/gralloc \
                                  $(display_top)/libgralloc1
 
 include $(BUILD_HEADER_LIBRARY)