mb/google/skyrim: Resolve boot behavior

Move GPIO init for SSD_AUX_RESET_L to ensure that eMMC devices
will be initialized in time for the nominal boot flow.

BUG=b:237701972
TEST=Boots to OS
BRANCH=none

Signed-off-by: Jon Murphy <jpmurphy@google.com>
Change-Id: I610966fd9d31581f15d8bcd51f8a116c27fd6311
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66461
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/skyrim/variants/baseboard/gpio.c

@@ -197,6 +197,8 @@ static const struct soc_amd_gpio pcie_gpio_table[] = {
 	PAD_NFO(GPIO_26, PCIE_RST0_L, HIGH),
 	/* SD_AUX_RESET_L  */
 	PAD_NFO(GPIO_27, PCIE_RST1_L, HIGH),
+	/* SSD_AUX_RESET_L */
+	PAD_GPO(GPIO_6, HIGH),
 };
 
 __weak void variant_pcie_gpio_table(const struct soc_amd_gpio **gpio, size_t *size)