[media] staging: media: lirc: no space after cast

checkpatch complains about space after type cast.

[mchehab@osg.samsung.com: removed an obsolete hunk]
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>