Fix compilation issue for undeclared function during debug mode

`proc_set_btcoex_dbg` is only defined if CONFIG_BT_COEXIST, so move
accordingly.
Merge pull request #9 from Harshavardhana/master

Fix compilation issue for undeclared function during debug mode
Added Vendor and Product ID for Edimax EW-7811UTC
Merge pull request #15 from scrivy/master

Added Vendor and Product ID for Edimax EW-7811UTC
Added new usb interface (Buffalo WI-U2-433DM)
Merge pull request #18 from dtamada/master

Added new usb interface (Buffalo WI-U2-433DM)
Merge remote-tracking branch 'upstream/master' into 26June2014