wifi: iwlwifi: Add required space before open '('

This patch addresses the error from checkpatch.pl that a space is
required before an open parenthesis.
Signed-off-by: Solomon Tan <solomonbstoner@protonmail.ch>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230314194113.a21ba1967d94.Iaa52fc6517ea9efb3efc7b1b98f4df2a288de1c3@changeidSigned-off-by: Johannes Berg <johannes.berg@intel.com>

drivers/net/wireless/intel/iwlwifi/mvm/fw.c

@@ -1037,7 +1037,7 @@ int iwl_mvm_ppag_send_cmd(struct iwl_mvm *mvm)
 
 	ret = iwl_read_ppag_table(&mvm->fwrt, &cmd, &cmd_size);
 	/* Not supporting PPAG table is a valid scenario */
-	if(ret < 0)
+	if (ret < 0)
 		return 0;
 
 	IWL_DEBUG_RADIO(mvm, "Sending PER_PLATFORM_ANT_GAIN_CMD\n");