staging: vt6656: s_uGetRTSCTSRsvTime return u16 endian corrected value.

s_uGetRTSCTSRsvTime always needs to be corrected to u16 endian value.

Change function to return u16 endian corrected value.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>