iwlwifi: mvm: dump the radio registers when the firmware crashes

Dumping the content of the radio registers greatly helps
to debug PHY issues, which can lead to TFD queue hang.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-prph.h b/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
index 9da7dc4..5bde23a 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
@@ -345,6 +345,12 @@
 #define TXF_READ_MODIFY_DATA		(0xa00448)
 #define TXF_READ_MODIFY_ADDR		(0xa0044c)
 
+/* Radio registers access */
+#define RSP_RADIO_CMD			(0xa02804)
+#define RSP_RADIO_RDDAT			(0xa02814)
+#define RADIO_RSP_ADDR_POS		(6)
+#define RADIO_RSP_RD_CMD		(3)
+
 /* FW monitor */
 #define MON_BUFF_SAMPLE_CTL		(0xa03c00)
 #define MON_BUFF_BASE_ADDR		(0xa03c3c)