staging: r8712u: Add TODO to driver files

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rtl8712/TODO

+TODO:
+- merge Realtek's bugfixes and new features into the driver
+- switch to use LIB80211
+- switch to use MAC80211
+- checkpatch.pl fixes - only a few remain
+- sparse fixes
+- switch from large inline firmware file to use the firmware interface
+  and add the file to the linux-firmware package.
+
+Please send any patches to Greg Kroah-Hartman <greg@kroah.com>.
+