mb/google/nissa/var/dirks: Configure TCSS port 1 to USB Type-A

Configure EnableTcssCovTypeA and MappingPchXhciUsbA to repurpose
TCSS port 1 to USB Type-A (Document Number: 742076)

USB Ports for dirks:
(FRONT) USBA 10G x 3
(REAR)  USBA 10G x 2 + USBC 10G x 1

BUG=b:389391653
TEST=none.

Change-Id: Ib227995cde8d871ff58c89ccb09221226640a7e6
Signed-off-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85991
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/brya/variants/dirks/Makefile.mk

@@ -4,3 +4,4 @@ bootblock-y += gpio.c
 romstage-y += gpio.c
 
 ramstage-y += gpio.c
+ramstage-y += ramstage.c

src/mainboard/google/brya/variants/dirks/ramstage.c

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <soc/ramstage.h>
+
+void mainboard_silicon_init_params(FSP_S_CONFIG *params)
+{
+	/*Enable Type C port1 convert to Type A*/
+	params->EnableTcssCovTypeA[1] = 1;
+	/* PCH xchi port number for Type C port1 port mapping */
+	params->MappingPchXhciUsbA[1] = 2;
+
+}