serial: sh-sci: Avoid FIFO clear for MCE toggle.

When toggling the MCE support we don't want to concern ourselves with the
FIFO state, so ensure that the clearing bits are masked out when updating
the MCE state.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2011-12-02 19:02:06 +09:00
commit 73c3d53f38