arm: sunxi: Use "imply" for USB without further guards

Given that ARCH_SUNXI already implies that USB_GADGET should be enable,
we should also imply USB being enabled.

Signed-off-by: Tom Rini <trini@konsulko.com>
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Is this a tiny bit of a cheat to avoid patch 1/8 of Simon's bootstd
series? Yes, a little. But it's also correct I believe.

Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Simon Glass <sjg@chromium.org>
1 file changed