[media] Make nchg variable signed because the code compares this variable against negative values
[media] Make nchg variable signed because the code compares this variable against negative values

The sonixj driver compares the value for nchg with:
 		if (sd->nchg < -6 || sd->nchg >= 12) {

With u8, negative values won't work.

Signed-off-by: Hans Petter Selasky <7b242d943fcf32e060e9005c389f6e64f0d376fc@c2i.net>
Acked-by: Jean-Francois Moine <e5394ce9c4b9ae7d2c4686830c5ac5f3b9028b6a@free.fr>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@redhat.com>

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