mb/packardbell/ms2290/acpi: Serialize Control Method

IASL reports remarks 'Control Method should be made Serialized'.

Change-Id: I5606c6e435da17f7d4732148f6ddcedb1fde4ab0
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32769
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/mainboard/packardbell/ms2290/acpi/battery.asl

@@ -52,7 +52,7 @@ Method(BSTA, 4, NotSerialized)
 	Return (Arg1)
 }
 
-Method(BINF, 2, NotSerialized)
+Method(BINF, 2, Serialized)
 {
 	Acquire(ECLK, 0xffff)
 	Store(0, PAGE)

src/mainboard/packardbell/ms2290/acpi/ec.asl

@@ -101,7 +101,7 @@ Device(EC)
 		BAOE,	128,		/* Battery OEM info */
 	}
 
-	Method (_CRS, 0)
+	Method (_CRS, 0, Serialized)
 	{
 		Name (ECMD, ResourceTemplate()
 		{