Add libdumpstateutil to vendor variant list

This change adds libdumpstateutil to VndkMustUseVendorVariantList. This
is done to avoid a VNDK re-spin on aosp/2679475 and aosp/2681060, which
add the dumpstate util function IsStrictRun and make it framework-only.

Test: Presubmit; verify that builds still work on internal (refer to
      aosp/2681060 test).
Ignore-AOSP-First: This is already in AOSP, but needs to be
                   cherry-picked here first before being removed from
		   AOSP.
Bug: 283326935
Change-Id: I3c60dd919a65182937d6e0b233635ff6ca9414d3

cc/config/vndk.go

@@ -21,6 +21,7 @@ package config
 var VndkMustUseVendorVariantList = []string{
 	"android.hardware.nfc@1.2",
 	"libbinder",
+	"libdumpstateutil",
 	"libcrypto",
 	"libexpat",
 	"libgatekeeper",