mb/google/octopus/variants/garg: update Garfour SKU ID

SKUID:
49 - Garfour EVT (touch, TypeA DB)
50 - Garfour EVT (non-touch, HDMI DB)

BUG=b:152861752
BRANCH=octopus
TEST=emerge-octopus coreboot chromeos-bootimage

Change-Id: I656a2bb2404efded6da6697664748b6c8d2ca4e0
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40586
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Marco Chen <marcochen@google.com>

src/mainboard/google/octopus/variants/garg/gpio.c

@@ -66,6 +66,7 @@ const struct pad_config *variant_override_gpio_table(size_t *num)
 	switch (sku_id) {
 	case SKU_9_HDMI:
 	case SKU_19_HDMI_TS:
+	case SKU_50_HDMI:
 		*num = ARRAY_SIZE(hdmi_override_table);
 		return hdmi_override_table;
 	case SKU_17_LTE:

src/mainboard/google/octopus/variants/garg/include/variant/sku.h

@@ -13,6 +13,8 @@ enum {
 	SKU_20_2A2C_TS = 20,
 	SKU_37_2A2C_360 = 37,
 	SKU_38_2A2C_360_TS_NO_STYLUES = 38,
+	SKU_49_2A2C_TS = 49,
+	SKU_50_HDMI = 50,
 };
 
 #endif /* __MAINBOARD_SKU_H__ */

src/mainboard/google/octopus/variants/garg/variant.c

@@ -47,6 +47,7 @@ const char *mainboard_vbt_filename(void)
 	switch (sku_id) {
 	case SKU_9_HDMI:
 	case SKU_19_HDMI_TS:
+	case SKU_50_HDMI:
 		return "vbt_garg_hdmi.bin";
 	default:
 		return "vbt.bin";