Staging: vc04_services: Fix unsigned int warnings

This patch fixes the checkpatch.pl warning:

WARNING: Prefer 'unsigned int' to bare use of 'unsigned'

Signed-off-by: Baidyanath Kundu <kundubaidya99@gmail.com>
Link: https://lore.kernel.org/r/20200713143653.32332-1-kundubaidya99@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>