make sure SF initialization is ran at target priority and correct thread group

SF can spawn threads (indirectly) during initialization
and we want those to be spawned at URGENT_DISPLAY_PRIORITY
(in theory they should set their own, but some code lives
in vendor libraries and doesn't).

Bug: 10430209
Change-Id: I5b3a8f979297de287614c8eafd8267bef1176e4b
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 81b0d14..3888d7e 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -82,6 +82,7 @@
 
 LOCAL_SHARED_LIBRARIES := \
 	libsurfaceflinger \
+	libcutils \
 	liblog \
 	libbinder \
 	libutils