Allow sending restart conditions upon direction change as this is
required by some chips.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: NHeiko Schocher <hs@denxx.de>