Stop targeting Froyo.

Froyo isn't supported any more.

Change-Id: I0008ad0273b2aa31ca523fdedd64437bf76c5cbe
diff --git a/jni/Android.mk b/jni/Android.mk
index cd89b8f..6053d27 100644
--- a/jni/Android.mk
+++ b/jni/Android.mk
@@ -29,7 +29,7 @@
 
 LOCAL_CFLAGS += -Wall -Wno-unused-parameter -Wno-switch
 
-LOCAL_SDK_VERSION := 8
+LOCAL_SDK_VERSION := 9
 LOCAL_NDK_STL_VARIANT := c++_static # LLVM libc++
 
 include $(BUILD_SHARED_LIBRARY)