mb/dell/optiplex_9010: Fix chassis types

Discovered this chassis identification number on Dell Precision
T1650 which is much OptiPlex 9010 alike. Precision T1650 is a Mid
Tower (MT) chassis.

Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: I2266fe39606b947a3d30a9462377fd56c39c2fa7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62209
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/mainboard/dell/optiplex_9010/mainboard.c

@@ -64,16 +64,13 @@ static void mainboard_enable(struct device *dev)
 	printk(BIOS_DEBUG, "Chassis type: ");
 	switch (pin_sts) {
 	case 0:
+	case 4:
 		printk(BIOS_DEBUG, "MT\n");
 		break;
 	case 3:
 	case 11:
 		printk(BIOS_DEBUG, "USFF\n");
 		break;
-	case 4:
-		/* As per table in schematics, but don't know what this is */
-		printk(BIOS_DEBUG, "Comoros\n");
-		break;
 	case 1:
 	case 9:
 	case 5:

src/mainboard/dell/optiplex_9010/sch5545_ec.c

@@ -547,6 +547,7 @@ static uint8_t get_chassis_type(void)
 	/* This mapping will determine which EC init sequence to use */
 	switch (chassis_id) {
 	case 0x0:
+	case 0x4:
 		return 5;
 	case 0x8:
 		return 4;