drivers: usb: add separated Samsung MTP option

Change-Id: Ie3b8bf94fb888ddd7c7138ed713d56a3564a07b5

arch/arm64/configs/vendor/lineage-a52q_defconfig

@@ -4245,6 +4245,7 @@ CONFIG_USB_CONFIGFS_F_GSI=y
 CONFIG_USB_CONFIGFS_F_QDSS=y
 # CONFIG_USB_CONFIGFS_F_IPC is not set
 CONFIG_USB_DUN_SUPPORT=y
+# CONFIG_USB_ANDROID_SAMSUNG_MTP is not set
 
 #
 # USB Power Delivery and Type-C drivers

drivers/usb/gadget/Kconfig

@@ -727,6 +727,15 @@ config USB_CONFIGFS_F_MDM_DATA
 
 source "drivers/usb/gadget/legacy/Kconfig"
 
+config USB_ANDROID_SAMSUNG_MTP
+	bool "Samsung MTP function"
+	depends on USB_G_ANDROID && !SEC_FACTORY
+	help
+	  Provides Media Transfer Protocol (MTP) support
+	  for samsung gadget driver.
+	  If you enable this option,
+	  google mtp will be changed to samsung mtp.
+
 config USB_DUN_SUPPORT
 	boolean "DUN support function"
         depends on USB_F_ACM

drivers/usb/gadget/function/Makefile

@@ -51,12 +51,12 @@ usb_f_printer-y			:= f_printer.o
 obj-$(CONFIG_USB_F_PRINTER)	+= usb_f_printer.o
 usb_f_tcm-y			:= f_tcm.o
 obj-$(CONFIG_USB_F_TCM)		+= usb_f_tcm.o
-ifeq ($(CONFIG_SEC_FACTORY),y)
-usb_f_mtp-y                     := f_mtp.o
-obj-$(CONFIG_USB_F_MTP)         += usb_f_mtp.o
-else
+ifeq ($(CONFIG_USB_ANDROID_SAMSUNG_MTP),y)
 usb_f_mtp_samsung-y	            := f_mtp_samsung.o
 obj-$(CONFIG_USB_F_MTP)         += usb_f_mtp_samsung.o
+else
+usb_f_mtp-y                     := f_mtp.o
+obj-$(CONFIG_USB_F_MTP)         += usb_f_mtp.o
 endif
 usb_f_ptp-y                     := f_ptp.o
 obj-$(CONFIG_USB_F_PTP)         += usb_f_ptp.o