mb/google/guybrush: Store XHCI resources

Implement `smm_mainboard_pci_resource_store_init` to store the
resources for XHCI devices. These stored resources are later used by
the elog code to log XHCI wake events.

Example elog contents:
```
250 | 2022-10-11 16:04:49 | S0ix Enter
251 | 2022-10-11 16:04:53 | S0ix Exit
252 | 2022-10-11 16:04:53 | Wake Source | GPE # | 31
253 | 2022-10-11 16:04:53 | Wake Source | PME - XHCI (USB 2.0 port) | 1
254 | 2022-10-11 16:05:24 | S0ix Enter
255 | 2022-10-11 16:05:27 | S0ix Exit
256 | 2022-10-11 16:05:27 | Wake Source | GPE # | 31
257 | 2022-10-11 16:05:27 | Wake Source | PME - XHCI (USB 2.0 port) | 257
```

BRANCH=guybrush
BUG=b:186792595
TEST=Ran on nipperkin, verified that XHCI wake events show up in elog

Change-Id: I1d0911df9e3102791bf7b5723ac38e2ba82a9db6
Signed-off-by: Robert Zieba <robertzieba@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68326
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/guybrush/mainboard.c b/src/mainboard/google/guybrush/mainboard.c
index a7eab08..71d3ec5 100644
--- a/src/mainboard/google/guybrush/mainboard.c
+++ b/src/mainboard/google/guybrush/mainboard.c
@@ -5,8 +5,10 @@
 #include <amdblocks/acpimmio.h>
 #include <amdblocks/amd_pci_util.h>
 #include <amdblocks/psp.h>
+#include <amdblocks/xhci.h>
 #include <baseboard/variants.h>
 #include <console/console.h>
+#include <cpu/x86/smm.h>
 #include <device/device.h>
 #include <drivers/i2c/tpm/chip.h>
 #include <gpio.h>
@@ -186,6 +188,11 @@
 	pm_write32(PM_ESPI_INTR_CTRL, PM_ESPI_DEV_INTR_MASK & ~(BIT(1)));
 }
 
+void smm_mainboard_pci_resource_store_init(struct smm_pci_resource_info *slots, size_t size)
+{
+	soc_xhci_store_resources(slots, size);
+}
+
 struct chip_operations mainboard_ops = {
 	.init = mainboard_init,
 	.enable_dev = mainboard_enable,