soc/amd/phoenix: use common SMU S3/4/5 entry message code

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ie7ded68f4732ec12a1c7e59445d572763a03c3b9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71879
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
diff --git a/src/soc/amd/phoenix/Kconfig b/src/soc/amd/phoenix/Kconfig
index fc79ad8..346d155 100644
--- a/src/soc/amd/phoenix/Kconfig
+++ b/src/soc/amd/phoenix/Kconfig
@@ -65,6 +65,7 @@
 	select SOC_AMD_COMMON_BLOCK_SMI
 	select SOC_AMD_COMMON_BLOCK_SMM
 	select SOC_AMD_COMMON_BLOCK_SMU
+	select SOC_AMD_COMMON_BLOCK_SMU_SX_ENTRY
 	select SOC_AMD_COMMON_BLOCK_SPI
 	select SOC_AMD_COMMON_BLOCK_TSC_FAM17H_19H
 	select SOC_AMD_COMMON_BLOCK_UART