usb: gadget: mass_storage: merge usb_f_mass_storage module with u_ms module

u_ms.ko is needed only together with usb_f_mass_storage.ko. Merge them.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/gadget/Kconfig

@@ -525,9 +525,6 @@ config USB_F_SUBSET
 config USB_F_RNDIS
 	tristate
 
-config USB_U_MS
-	tristate
-
 config USB_F_MASS_STORAGE
 	tristate
 
@@ -671,7 +668,6 @@ config USB_CONFIGFS_PHONET
 config USB_CONFIGFS_MASS_STORAGE
 	boolean "Mass storage"
 	depends on USB_CONFIGFS
-	select USB_U_MS
 	select USB_F_MASS_STORAGE
 	help
 	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.
@@ -895,7 +891,6 @@ config USB_MASS_STORAGE
 	tristate "Mass Storage Gadget"
 	depends on BLOCK
 	select USB_LIBCOMPOSITE
-	select USB_U_MS
 	select USB_F_MASS_STORAGE
 	help
 	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.
@@ -1020,7 +1015,6 @@ config USB_G_ACM_MS
 	select USB_LIBCOMPOSITE
 	select USB_U_SERIAL
 	select USB_F_ACM
-	select USB_U_MS
 	select USB_F_MASS_STORAGE
 	help
 	  This driver provides two functions in one configuration:
@@ -1037,7 +1031,6 @@ config USB_G_MULTI
 	select USB_U_SERIAL
 	select USB_U_ETHER
 	select USB_F_ACM
-	select USB_U_MS
 	select USB_F_MASS_STORAGE
 	help
 	  The Multifunction Composite Gadget provides Ethernet (RNDIS

drivers/usb/gadget/Makefile

@@ -60,9 +60,7 @@ usb_f_ecm_subset-y		:= f_subset.o
 obj-$(CONFIG_USB_F_SUBSET)	+= usb_f_ecm_subset.o
 usb_f_rndis-y			:= f_rndis.o
 obj-$(CONFIG_USB_F_RNDIS)	+= usb_f_rndis.o
-u_ms-y				:= storage_common.o
-obj-$(CONFIG_USB_U_MS)		+= u_ms.o
-usb_f_mass_storage-y		:= f_mass_storage.o
+usb_f_mass_storage-y		:= f_mass_storage.o storage_common.o
 obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o
 
 #