iwlwifi: bump required firmware API version for 3160/7260

As the firmware API has changed significantly and we don't
have support code for the old APIs, bump the version to be
able to release the version 7 API firmware. Unfortunately
this means that the driver in 3.9 and 3.10 can't work, but
that's still better than crashing the device/driver there.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

drivers/net/wireless/iwlwifi/iwl-7000.c

@@ -67,16 +67,16 @@
 #include "iwl-agn-hw.h"
 
 /* Highest firmware API version supported */
-#define IWL7260_UCODE_API_MAX	6
-#define IWL3160_UCODE_API_MAX	6
+#define IWL7260_UCODE_API_MAX	7
+#define IWL3160_UCODE_API_MAX	7
 
 /* Oldest version we won't warn about */
-#define IWL7260_UCODE_API_OK	6
-#define IWL3160_UCODE_API_OK	6
+#define IWL7260_UCODE_API_OK	7
+#define IWL3160_UCODE_API_OK	7
 
 /* Lowest firmware API version supported */
-#define IWL7260_UCODE_API_MIN	6
-#define IWL3160_UCODE_API_MIN	6
+#define IWL7260_UCODE_API_MIN	7
+#define IWL3160_UCODE_API_MIN	7
 
 /* NVM versions */
 #define IWL7260_NVM_VERSION		0x0a1d