soc/apollolake: Hook up CnviMode to devicetree

Hook PCH_DEVFN_CNVI (0c.0) to CnviMode.

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I8b51e98952a39bd432e9bc63eea57a40dd6cf106
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62127
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Andy Pont <andy.pont@sdcsystems.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/soc/intel/apollolake/chip.c

@@ -447,6 +447,10 @@ static void disable_dev(struct device *dev, FSP_S_CONFIG *silconfig)
 	case SA_DEVFN_IPU:
 		silconfig->IpuEn = 0;
 		break;
+#else
+	case PCH_DEVFN_CNVI:
+		silconfig->CnviMode = 0;
+		break;
 #endif
 	case PCH_DEVFN_HDA:
 		silconfig->HdaEnable = 0;