[media] xc4000: cleanup dmesg logging
[media] xc4000: cleanup dmesg logging

Remove some printk() calls added during driver development, and demote some
other messages to debug only (to reduce dmesg chatter).

Signed-off-by: Devin Heitmueller <039f3b3c9b432027eb8868e4a734444e1ca005b6@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@redhat.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas