driver: replace uint8_t with u8

u8 is the proper kernel type.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
driver: remove hand-rolled memory dump function

Use the built-in kernel %*ph macro instead.

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