libusbhost: generates a static library

due to limitations of the droidboot OS used for POS,
there's a need for a static libusbhost library.

this permits to include libusbhost in droidboot

Change-Id: I0f0c07817ad19b773b466b69fd6e997877d41b34
Signed-off-by: Guillaume Ranquet <guillaumex.ranquet@intel.com>
diff --git a/libusbhost/Android.mk b/libusbhost/Android.mk
index 52b4ead..9565cc5 100644
--- a/libusbhost/Android.mk
+++ b/libusbhost/Android.mk
@@ -44,3 +44,13 @@
 LOCAL_SHARED_LIBRARIES := libcutils
 
 include $(BUILD_SHARED_LIBRARY)
+
+# Static library for target
+# ========================================================
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libusbhost
+LOCAL_SRC_FILES := usbhost.c
+
+include $(BUILD_STATIC_LIBRARY)