rtl8192e: Rename clashing symbols

The "rtl8192e: Export symbols" patch exported three functions already
exported by the rtl8192u driver. This patch renames the three functions:
  Dot11d_Init => dot11d_init
  HTUpdateSelfAndPeerSetting => HT_update_self_and_peer_setting
  IsLegalChannel => rtllib_legal_channel

Signed-off-by: Sean MacLennan <seanm@seanm.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>