Fix wifi lib to musl.

Change-Id: I7ad885b315efe1a37c4c26376c7a6f0921a638ed
diff --git a/mbtk/Make.defines b/mbtk/Make.defines
index 4f77953..2ce3c80 100755
--- a/mbtk/Make.defines
+++ b/mbtk/Make.defines
@@ -68,7 +68,8 @@
 

 # 	-L$(OUT_DIR)/lib

 LIB_DIR = \

-	-L$(BUILD_ROOT)/rootfs/lib

+	-L$(BUILD_ROOT)/rootfs/lib \

+	-L$(BUILD_ROOT)/rootfs/usr/lib

 

 LIBS = -lpthread -lstdc++ -lwpa_client