__msm_console_write() assumes that interrupts are disabled, but
with threaded console printers it is possible that the write()
callback of the console is called with interrupts enabled.

Explicitly disable interrupts using local_irq_save() to preserve
the assumed context.
Reported-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: NPetr Mladek <pmladek@suse.com>
Signed-off-by: NJohn Ogness <john.ogness@linutronix.de>
Link: https://lore.kernel.org/r/20220506213324.470461-1-john.ogness@linutronix.deSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>