staging: ks7010: replace uint8_t in favour of u8 in michael_get_mic

 This commit replaces uint8_t parameter for preferred one u8 in
 michael_get_mic function.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>