Allow libyuv to compile on gce devices

Change-Id: I20b125343ae790f7d8f364e826bdae4fe30cd00e
(cherry picked from commit 9cec02a7b19df5c3d2f334f9393d0ad5366753d0)
diff --git a/Android.mk b/Android.mk
index 7010fe8..5be1925 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,6 +1,5 @@
 # This is the Android makefile for google3/third_party/libsrtp so that we can
 # build it with the Android NDK.
-ifeq ($(TARGET_ARCH),arm)
 
 LOCAL_PATH := $(call my-dir)
 
@@ -52,5 +51,3 @@
 LOCAL_MODULE_TAGS := optional
 
 include $(BUILD_STATIC_LIBRARY)
-
-endif