Specify options_file in vendor_ramdisk prebuilt_kernel module

To install module.options file to the vendor_ramdisk partition

Test: m soong_generated_vendor_ramdisk_filesystem_test
Bug: 381104942
Change-Id: I872a2100ce72171394731e6295fa4d1a611a3f4f
diff --git a/fsgen/filesystem_creator.go b/fsgen/filesystem_creator.go
index 556c4dc..8325b1e 100644
--- a/fsgen/filesystem_creator.go
+++ b/fsgen/filesystem_creator.go
@@ -507,6 +507,7 @@
 		Vendor_ramdisk       *bool
 		Load_by_default      *bool
 		Blocklist_file       *string
+		Options_file         *string
 	}{
 		Name: proptools.StringPtr(name),
 	}
@@ -543,6 +544,10 @@
 		if blocklistFile := ctx.Config().ProductVariables().PartitionVarsForSoongMigrationOnlyDoNotUse.VendorRamdiskKernelBlocklistFile; blocklistFile != "" {
 			props.Blocklist_file = proptools.StringPtr(blocklistFile)
 		}
+		if optionsFile := ctx.Config().ProductVariables().PartitionVarsForSoongMigrationOnlyDoNotUse.VendorRamdiskKernelOptionsFile; optionsFile != "" {
+			props.Options_file = proptools.StringPtr(optionsFile)
+		}
+
 	default:
 		ctx.ModuleErrorf("DLKM is not supported for %s\n", partitionType)
 	}