util: Include in Android builds

This patch fixes Android build failures by including src/util directory
in compilation. Files inside of this directory are compiled into
libmesa_util static library and linked with resulting libGLES_mesa.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
CC: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
diff --git a/src/glsl/Android.mk b/src/glsl/Android.mk
index 7b1fa7e..1cbc5c6 100644
--- a/src/glsl/Android.mk
+++ b/src/glsl/Android.mk
@@ -39,6 +39,7 @@
 	$(LIBGLSL_FILES)
 
 LOCAL_C_INCLUDES := \
+	$(MESA_TOP)/src \
 	$(MESA_TOP)/src/mapi \
 	$(MESA_TOP)/src/mesa
 
@@ -59,10 +60,11 @@
 	$(GLSL_COMPILER_CXX_FILES)
 
 LOCAL_C_INCLUDES := \
+	$(MESA_TOP)/src \
 	$(MESA_TOP)/src/mapi \
 	$(MESA_TOP)/src/mesa
 
-LOCAL_STATIC_LIBRARIES := libmesa_glsl libmesa_glsl_utils
+LOCAL_STATIC_LIBRARIES := libmesa_glsl libmesa_glsl_utils libmesa_util
 
 LOCAL_MODULE_TAGS := eng
 LOCAL_MODULE := glsl_compiler