add pin groups for USP0 only holding one of TX and RX frame sync. this patch
matches with the change in drivers/pinctrl/sirf.
commit
73f68c01f46 did this for prima2, but missed prima2. this patch fixes
the problem.
Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>