media: qm1d1c0042: fix error return code in qm1d1c0042_init()

Fix to return a negative error code from the error handling case
instead of 0 in function qm1d1c0042_init(), as done elsewhere
in this function.

Fixes: ab4d1452 ("[media] em28xx: add support for PLEX PX-BCUD (ISDB-S)")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Luo Meng <luomeng12@huawei.com>
Acked-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>