serial: liteuart: fix MODULE_ALIAS

serial: liteuart: fix MODULE_ALIAS

BugLink: https://bugs.launchpad.net/bugs/1959376
[ Upstream commit 556172fabd226ba14b70c1740d0826a4717473dc ]

modprobe can't handle spaces in aliases.

Fixes: 1da81e5562fa ("drivers/tty/serial: add LiteUART driver")
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20220104131030.1674733-1-hi@alyssa.is
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>