soc/intel/skylake: switch to common ACPI code

Use the common ACPI code to reduce code duplication.

After this change, `PSS_MAX_ENTRIES` is honored correctly in P-state
table generation (as of commit c2540a9) and the number reduces from 10
to 7 entries.

Also, remnants of P_BLK support missed in CB:58096 will vanish.

Tested on google/fizz: no errors in dmesg, ACPI tables remain the same
(except PSS, as mentioned above).

Change-Id: I1ec804ae4006a2d9b69c0d93a658eb3b84d60b40
Tested-by: Matt DeVillier <matt.devillier@gmail.com>
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44138
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
diff --git a/src/soc/intel/skylake/Kconfig b/src/soc/intel/skylake/Kconfig
index d66c331..bd3353d 100644
--- a/src/soc/intel/skylake/Kconfig
+++ b/src/soc/intel/skylake/Kconfig
@@ -51,6 +51,8 @@
 	select SOC_INTEL_COMMON
 	select SOC_INTEL_COMMON_ACPI_WAKE_SOURCE
 	select SOC_INTEL_COMMON_BLOCK
+	select SOC_INTEL_COMMON_BLOCK_ACPI
+	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