Add the FixedGridLayout sample code.
This time with an Android.mk
P.S. Hi from Google I/O!
diff --git a/samples/FixedGridLayout/Android.mk b/samples/FixedGridLayout/Android.mk
new file mode 100644
index 0000000..1562cb9
--- /dev/null
+++ b/samples/FixedGridLayout/Android.mk
@@ -0,0 +1,12 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := samples
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_PACKAGE_NAME := FixedGridLayout
+
+LOCAL_SDK_VERSION := current
+
+include $(BUILD_PACKAGE)