iwlwifi: mvm: add debugfs file for fixed reduced tx power

Allow fixing the tx power reduction through debugfs
file.

The change doesn't take affect immediately, but
will be considered the next time tpc is evaluated.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index d8b0345..fcc056d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -336,7 +336,9 @@
 	struct dentry *rs_sta_dbgfs_scale_table_file;
 	struct dentry *rs_sta_dbgfs_stats_table_file;
 	struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
+	struct dentry *rs_sta_dbgfs_reduced_txp_file;
 	u32 dbg_fixed_rate;
+	u8 dbg_fixed_txp_reduction;
 #endif
 	struct iwl_mvm *drv;