staging: vchiq_arm: drop enum vchiq_status from vchiq_*_internal

staging: vchiq_arm: drop enum vchiq_status from vchiq_*_internal

Replace the custom set of return values with proper Linux error codes
for the following functions:

vchiq_use_internal()
vchiq_release_internal()
vchiq_use_service_internal()
vchiq_release_service_internal()

Now we can use the result directly as return value for vchiq_ioctl().

Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1619347863-16080-9-git-send-email-stefan.wahren@i2se.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>