soc/intel/cannonlake: Switch to runtime generation of Intel Power Engine

The pep.asl file is being obsoleted by runtime generation, therefore
switch cannonlake boards to this method.

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ic5343b0fd37eafac29a23846c8cfc3ca93d1821d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56010
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
diff --git a/src/soc/intel/cannonlake/Kconfig b/src/soc/intel/cannonlake/Kconfig
index f2a316a..8abe930 100644
--- a/src/soc/intel/cannonlake/Kconfig
+++ b/src/soc/intel/cannonlake/Kconfig
@@ -80,6 +80,7 @@
 	select SOC_INTEL_COMMON_BLOCK_ACPI_CPPC
 	select SOC_INTEL_COMMON_BLOCK_ACPI_GPIO
 	select SOC_INTEL_COMMON_BLOCK_ACPI_LPIT
+	select SOC_INTEL_COMMON_BLOCK_ACPI_PEP
 	select SOC_INTEL_COMMON_BLOCK_CAR
 	select SOC_INTEL_COMMON_BLOCK_CHIP_CONFIG
 	select SOC_INTEL_COMMON_BLOCK_CNVI