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/omap3_logic_defconfig b/configs/omap3_logic_defconfig
index 03a39c6..19a2976 100644
--- a/configs/omap3_logic_defconfig
+++ b/configs/omap3_logic_defconfig
@@ -44,9 +44,9 @@
 CONFIG_USB_MUSB_GADGET=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="TI"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0451
+CONFIG_USB_GADGET_PRODUCT_NUM=0xd022
 CONFIG_USB_GADGET_DOWNLOAD=y
-CONFIG_G_DNL_MANUFACTURER="TI"
-CONFIG_G_DNL_VENDOR_NUM=0x0451
-CONFIG_G_DNL_PRODUCT_NUM=0xd022
 CONFIG_USB_ETHER=y
 CONFIG_BCH=y