soc/intel/common/acpi: drop the southridge scope around PEPD

PEPD will get included directly in the southbridge. Thus, drop the
scope around it.

Change-Id: Icb7a40e476966a7aca36bee055ee71d181508b87
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47246
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/common/block/acpi/acpi/pep.asl

@@ -14,8 +14,6 @@ External(\_SB.PCI0.LPCB.EC0.S0IX, MethodObj)
 External(\_SB.PCI0.EGPM, MethodObj)
 External(\_SB.PCI0.RGPM, MethodObj)
 
-Scope(\_SB)
-{
 Device(LPID)
 {
 	Name(_ADR, 0x00000000)
@@ -100,4 +98,3 @@ Scope(\_SB)
 		Return(Buffer(One) {0x00})
 	}		// Method(_DSM)
 }			// Device (LPID)
-}				// End Scope(\_SB)