staging: rtl8712: Fix multiple blank lines warning from .c files

This patch fixes the checkpatch.pl warnings like:
CHECK: Please don't use multiple blank lines
+
+
from rtl871x_ioctl_rtl.c, rtl871x_ioctl_set.c, rtl871x_recv.c,
and rtl871x_security.c

Signed-off-by: Sathish Kumar <skumark1902@gmail.com>
Link: https://lore.kernel.org/r/20220404035213.2609-1-skumark1902@gmail.com


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