Staging: rtl8712: rtl8712_recv: fixed 80 character length warning

When the checkpatch.pl script was run, it showed lines with length
more than 80 characters in rtl8712_recv.c file. Fixed by
breaking it up into two lines within 80 characters.

Signed-off-by: Merwin Trever Ferrao <merwintf@gmail.com>
Link: https://lore.kernel.org/r/20190813065806.GA23606@IoT-COE


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