soc/amd/picasso: Add support for DRIVERS_USB_PCI_XHCI

This provides the functionality to provide the GPE to the pci_xhci
driver.

BUG=b:154756391, b:160651028
TEST=Dump ACPI tables and verify GPE is set. Also dump SMI regs and
verify GPE is set. Resume using a USB keyboard.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ice7203831a1f65ed32f3a6392fe02c4b17d42617
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43332
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig
index 87d8c51..3bdaad2 100644
--- a/src/soc/amd/picasso/Kconfig
+++ b/src/soc/amd/picasso/Kconfig
@@ -18,6 +18,7 @@
 	select X86_AMD_INIT_SIPI
 	select ACPI_AMD_HARDWARE_SLEEP_VALUES
 	select DRIVERS_I2C_DESIGNWARE
+	select DRIVERS_USB_PCI_XHCI
 	select GENERIC_GPIO_LIB
 	select IDT_IN_EVERY_STAGE
 	select IOAPIC