soc/amd/cezanne: Set up SoC-specific XHCI definitions

Set up SoC-specific XHCI defines and enable SOC_AMD_COMMON_BLOCK_XHCI.

BRANCH=guybrush
BUG=b:186792595
TEST=builds

Signed-off-by: Robert Zieba <robertzieba@google.com>
Change-Id: I15e9c06cd38ac858b861a4d19626664704af7541
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67939
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig
index 170bc49..046fd23 100644
--- a/src/soc/amd/cezanne/Kconfig
+++ b/src/soc/amd/cezanne/Kconfig
@@ -70,6 +70,7 @@
 	select SOC_AMD_COMMON_FSP_DMI_TABLES
 	select SOC_AMD_COMMON_FSP_PCI
 	select SOC_AMD_COMMON_FSP_PRELOAD_FSPS
+	select SOC_AMD_COMMON_BLOCK_XHCI
 	select SSE2
 	select UDK_2017_BINDING
 	select USE_DDR4