benchmarks: Build them on Android.

They build fine so give them some exposure.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Brad Volkin <bradley.d.volkin@intel.com>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
diff --git a/benchmarks/Makefile.sources b/benchmarks/Makefile.sources
new file mode 100644
index 0000000..f9da579
--- /dev/null
+++ b/benchmarks/Makefile.sources
@@ -0,0 +1,5 @@
+bin_PROGRAMS =                          \
+	intel_upload_blit_large         \
+	intel_upload_blit_large_gtt     \
+	intel_upload_blit_large_map     \
+	intel_upload_blit_small