Update Skia Android tools.

platform_tools/android/bin/android_make

Index: platform_tools/android/bin/android_make
diff --git a/platform_tools/android/bin/android_make b/platform_tools/android/bin/android_make
index e5952e25bef5d098c094a9532280d29857f411e2..ad52d67bca62c1aa10abd0ba5cb5b43330813588 100755
--- a/platform_tools/android/bin/android_make
+++ b/platform_tools/android/bin/android_make
@@ -3,7 +3,7 @@
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 source $SCRIPT_DIR/android_setup.sh
 
-for arg in ${APP_ARGS}
+for arg in ${APP_ARGS[@]}
 do
   if [[ "${arg}" == "--use-ccache" ]];
   then