Add ndk specifier to glog

Summary:
Forgot to add it here previously, so it will diverge
from others if there's a global NDK env var set.

Reviewed By: nikoant

Differential Revision: D21061431

fbshipit-source-id: 0a90211a63497bac467b2b9598c7c058145857cc

android/third-party/overrides/glog/build.gradle

@@ -10,6 +10,7 @@ apply plugin: 'com.android.library'
 android {
     compileSdkVersion rootProject.compileSdkVersion
     buildToolsVersion rootProject.buildToolsVersion
+    ndkVersion rootProject.ndkVersion
 
     defaultConfig {
         minSdkVersion rootProject.minSdkVersion