iwlwifi: use iwl-commands.h also in 3945

This patch uses iwl-commands.h also for iwl3945
more clean ups are required but this get to stage where it
compiles cleanly.
Most massive changes are in spectrum and power managment.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index c16640d..11e047d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -40,6 +40,7 @@
 
 #include "iwl-3945-core.h"
 #include "iwl-3945-fh.h"
+#include "iwl-commands.h"
 #include "iwl-3945-commands.h"
 #include "iwl-3945.h"
 #include "iwl-helpers.h"