glsl: android: add back missing generated glcpp include path

Commit 4db8f15a25 ("glsl: move the android build scripts a level up")
dropped a generated include path for glcpp. Add it back adjusting for the
new location.

Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Chih-Wei Huang <cwhuang@linux.org.tw>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

src/compiler/Android.glsl.gen.mk

@@ -33,6 +33,7 @@ LOCAL_SRC_FILES := $(LOCAL_SRC_FILES)
 
 LOCAL_C_INCLUDES += \
 	$(intermediates)/glsl \
+	$(intermediates)/glsl/glcpp \
 	$(LOCAL_PATH)/glsl \
 	$(LOCAL_PATH)/glsl/glcpp \