usb: gadget Move: CONFIG_G_DNL_* to Kconfig

And also reformat defconfigs using "make savedefconfig" rule.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
diff --git a/configs/nitrogen6q_defconfig b/configs/nitrogen6q_defconfig
index 0563ff3..ef2f0e2 100644
--- a/configs/nitrogen6q_defconfig
+++ b/configs/nitrogen6q_defconfig
@@ -11,4 +11,7 @@
 CONFIG_USB_GADGET=y
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_G_DNL_MANUFACTURER="Boundary"
+CONFIG_G_DNL_VENDOR_NUM=0x0525
+CONFIG_G_DNL_PRODUCT_NUM=0xa4a5
 CONFIG_OF_LIBFDT=y