mb/google/dedede: Add DB_PORTS FW_CONFIG in devicetree

DB_PORTS_1C_1A_LTE 6
DB_PORTS_1C 7
DB_PORTS_1A_HDMI_LTE 8

BUG=b:186393848
BRANCH=dedede
TEST=build pass

Change-Id: I8632960d7e538402bf033d07402116dac848f5ac
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54644
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

src/mainboard/google/dedede/variants/baseboard/devicetree.cb

@@ -6,6 +6,9 @@ fw_config
 		option DB_PORTS_1A_HDMI 3
 		option DB_PORTS_1C_1A 4
 		option DB_PORTS_LTE_HDMI 5
+		option DB_PORTS_1C_1A_LTE 6
+		option DB_PORTS_1C 7
+		option DB_PORTS_1A_HDMI_LTE 8
 	end
         field TABLETMODE 10
                 option TABLETMODE_DISABLED 0