Revert "rtl8192du: drop unused function rtl8192d_PHY_ConfigRFWithParaFile()"

This reverts commit 9fc653b4b1c5a8cac707496164d9e0e67dfbe8b8.
Remove unused rtl8192d_PHY_ConfigRFWithParaFile, and fix so that scanning works with NetworkManager

There apparently was confusion between rtl8192d_PHY_ConfigRFWithHeaderFile and
rtl8192d_PHY_ConfigRFWithParaFile. The former is not an empty routine, but
the patch that said it was removing the latter actually substituted for the
former. This error likely happened when the patches for master were translated
to the kernel-version branch.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Fix typo introduced when fixing checkpatch problems in rtw_cmd.c

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>