V4L/DVB (6111): Fix a warning when compiling on x86_64

tcm825x.c: In function 'ioctl_try_fmt_cap':
tcm825x.c:639: warning: format '%d' expects type 'int', but argument 4
                                        has type 'long unsigned int'

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>