Fix Android build.

Linux builds can assume to use X11, except if it's Android.

Change-Id: I1dc11b5fea73f198ea63d39ca924e95c1d150336
Reviewed-on: https://swiftshader-review.googlesource.com/16408
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/src/OpenGL/libEGL/libEGL.cpp b/src/OpenGL/libEGL/libEGL.cpp
index 905b6a8..5944efd 100644
--- a/src/OpenGL/libEGL/libEGL.cpp
+++ b/src/OpenGL/libEGL/libEGL.cpp
@@ -944,7 +944,7 @@
 
 	if(context)
 	{
-		#if defined(__linux__)
+		#if defined(__linux__) && !defined(__ANDROID__)
 			egl::Display *display = context->getDisplay();
 
 			if(!display)