[media] staging: as102: Fix CodingStyle errors in file as102_usb_drv.c

Fix Linux kernel coding style (whitespace and indentation) errors
in file as102_usb_drv.c. No functional changes.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Piotr Chmura <chmooreck@poczta.onet.pl>
Signed-off-by: Sylwester Nawrocki <snjw23@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>