usb: gadget: Make g_dnl USB settings common

The g_dnl USB settings for the vendor ID, product ID and manufacturer are
actually common settings that can and should be shared by all the gadgets.

Make them common by renaming them, and convert all the users.

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/configs/colibri_vf_defconfig b/configs/colibri_vf_defconfig
index 1ffe861..c0d664e 100644
--- a/configs/colibri_vf_defconfig
+++ b/configs/colibri_vf_defconfig
@@ -53,11 +53,11 @@
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="Toradex"
+CONFIG_USB_GADGET_VENDOR_NUM=0x1b67
+CONFIG_USB_GADGET_PRODUCT_NUM=0x4000
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
-CONFIG_G_DNL_MANUFACTURER="Toradex"
-CONFIG_G_DNL_VENDOR_NUM=0x1b67
-CONFIG_G_DNL_PRODUCT_NUM=0x4000
 CONFIG_VIDEO_FSL_DCU_FB=y
 CONFIG_SYS_CONSOLE_FG_COL=0x00
 CONFIG_OF_LIBFDT_OVERLAY=y