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/omap5_uevm_defconfig b/configs/omap5_uevm_defconfig
index 6e860ef..e229575 100644
--- a/configs/omap5_uevm_defconfig
+++ b/configs/omap5_uevm_defconfig
@@ -49,10 +49,10 @@
 CONFIG_USB_DWC3_PHY_OMAP=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="Texas Instruments"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0403
+CONFIG_USB_GADGET_PRODUCT_NUM=0xbd00
 CONFIG_USB_GADGET_DOWNLOAD=y
-CONFIG_G_DNL_MANUFACTURER="Texas Instruments"
-CONFIG_G_DNL_VENDOR_NUM=0x0403
-CONFIG_G_DNL_PRODUCT_NUM=0xbd00
 CONFIG_USB_HOST_ETHER=y
 CONFIG_USB_ETHER_SMSC95XX=y
 CONFIG_FAT_WRITE=y