[media] radio-aimslab.c: get rid of warning: no previous prototype
[media] radio-aimslab.c: get rid of warning: no previous prototype

drivers/media/radio/radio-aimslab.c:85:6: warning: no previous prototype for 'rtrack_set_pins' [-Wmissing-prototypes]

Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@redhat.com>

TeamVee-Kanas/android_kernel_samsung_kanas,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