soc/amd/genoa: Hook up microcode updating

Also update the regular expression to find the genoa blobs.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: Iba0109c049019a22cba1e0358cedbd9c198c6569
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76525
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/soc/amd/genoa/Kconfig b/src/soc/amd/genoa/Kconfig
index cbf0ddd..973677d5 100644
--- a/src/soc/amd/genoa/Kconfig
+++ b/src/soc/amd/genoa/Kconfig
@@ -34,6 +34,7 @@
 	select SOC_AMD_COMMON_BLOCK_SMU_SX_ENTRY
 	select SOC_AMD_COMMON_BLOCK_TSC
 	select SOC_AMD_COMMON_BLOCK_UART
+	select SOC_AMD_COMMON_BLOCK_UCODE
 	select SOC_AMD_COMMON_BLOCK_USE_ESPI
 	select X86_CUSTOM_BOOTMEDIA