[media] xc5000: Don't try forever to load the firmware

With the current code, if something bad happens during the
firmware init process, the device will keep trying forever,
and removing it would cause an OOPS.

Instead, try only a limited amount of time. If not, fails.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --cc drivers/media/tuners/xc5000.c
Simple merge