arm, am335x: siemens: update etamin defconfig

add missing USB_MUSB_* and CONFIG_G_DNL_*
board configuration.
Signed-off-by: NHeiko Schocher <hs@denx.de>

configs/etamin_defconfig

@@ -14,5 +14,11 @@ CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_WINBOND=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
+CONFIG_USB_MUSB_HOST=y
+CONFIG_USB_MUSB_GADGET=y
 CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_G_DNL_MANUFACTURER="Siemens AG"
+CONFIG_G_DNL_VENDOR_NUM=0x0908
+CONFIG_G_DNL_PRODUCT_NUM=0x02d2
 CONFIG_OF_LIBFDT=y