Combine es2::Image and es1::Image into egl::Image.

Change-Id: Iadd4ce8ac36ad3458741f244423731fa00d7fd84
Reviewed-on: https://swiftshader-review.googlesource.com/2982
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>
diff --git a/src/Android.mk b/src/Android.mk
index dbf2932..9695f3b 100644
--- a/src/Android.mk
+++ b/src/Android.mk
@@ -67,6 +67,7 @@
 
 LOCAL_SRC_FILES += \
 	OpenGL/common/AndroidCommon.cpp \
+	OpenGL/common/Image.cpp \
 	OpenGL/common/NameSpace.cpp \
 	OpenGL/common/Object.cpp \
 	OpenGL/common/MatrixStack.cpp \