sh: Restore bl bit toggling in idle loop.
This fixes up some crashes with IRQs racing the need_resched() test under
QEMU.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This fixes up some crashes with IRQs racing the need_resched() test under
QEMU.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>