[media] s5c73m3: Fix s5c73m3-core.c compiler warning

Fix for this compiler warning:
CC [M]  drivers/media/i2c/s5c73m3/s5c73m3-core.o
drivers/media/i2c/s5c73m3/s5c73m3-core.c: In function ‘s5c73m3_load_fw’:
drivers/media/i2c/s5c73m3/s5c73m3-core.c:360:2: warning: format ‘%d’ expects
argument of type ‘int’, but argument 4 has type ‘size_t’ [-Wformat]

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>