staging: rtl8723bs: Fix function signature that goes over 80 characters.

Wrap the function parameters for rtl8723bs_c2h_packet_handler() so
the function signature doesn't exceed 80 characters.

Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>