[media] si4713: si4713_set_rds_radio_text overwrites terminating \0
[media] si4713: si4713_set_rds_radio_text overwrites terminating \0

si4713_set_rds_radio_text will overwrite the terminating zero at the
end of the rds radio text string in order to send out a carriage return
as per the RDS spec.
Use a separate char buffer for the CR instead of corrupting the control
string.

Signed-off-by: Hans Verkuil <3a513708f73c27e7d36ebc496aa41dad6a3153ea@cisco.com>
Tested-by: Eduardo Valentin <19583d7f5a73f900a77b3924aabdcb631a4c7608@gmail.com>
Acked-by: Eduardo Valentin <19583d7f5a73f900a77b3924aabdcb631a4c7608@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <0cae1d1e981e84d16b82ca3d17be8a7f826608d3@samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs