haswell: Drop struct romstage_params type

It only contains a pointer to another struct. Flatten it.

Change-Id: Iab427592c332646e032a768719fc380c5794086b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43106
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tristan Corrick <tristan@corrick.kiwi>

src/mainboard/intel/baskingridge/romstage.c

@@ -112,10 +112,6 @@ void mainboard_romstage_entry(void)
 		},
 	};
 
-	struct romstage_params romstage_params = {
-		.pei_data = &pei_data,
-	};
-
 	/* Call into the real romstage main with this board's attributes. */
-	romstage_common(&romstage_params);
+	romstage_common(&pei_data);
 }