Staging: ks7010: ks_wlan_net: Fixing coding style warning

Removing the extra spaces before tabs, checkpatch:
WARNING: please, no space before tabs

Signed-off-by: SUNIL KALLUR RAMEGOWDA <kallur.sunil@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>