Add musbfsh QMU support

Apply the setting from the 4.4 kernel

Change-Id: I9b4e2f354312368beda1259375cd077622bd247d
diff --git a/debian/defconfig b/debian/defconfig
index 44e1376..a7b085a 100644
--- a/debian/defconfig
+++ b/debian/defconfig
@@ -423,3 +423,4 @@
 CONFIG_USB_VIDEO_CLASS=m
 CONFIG_VIDEO_MEDIATEK_VCODEC_MT8167=y
 CONFIG_EDGETPU_PMIC_SUPPORT=y
+CONFIG_MTK_MUSBFSH_QMU_SUPPORT=y