Change libusbhost from static to shared library

Change-Id: I0c16cc4536c4ab700c33433c8a6323ade7cfc95d
Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/libusbhost/Android.mk b/libusbhost/Android.mk
index 97c1edc..c9a1c8a 100644
--- a/libusbhost/Android.mk
+++ b/libusbhost/Android.mk
@@ -30,7 +30,7 @@
 
 endif
 
-# Static library for target
+# Shared library for target
 # ========================================================
 
 include $(CLEAR_VARS)
@@ -40,4 +40,4 @@
 
 LOCAL_CFLAGS := -g -DUSE_LIBLOG
 
-include $(BUILD_STATIC_LIBRARY)
+include $(BUILD_SHARED_LIBRARY)