Staging: rtl8187se: Fix indentation errors

This patch fixes the checkpatch.pl warnings "code indent should use
tabs where possible" in ieee80211/ieee80211_softmac.c.
Also unnecessary blanks lines are removed.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>