Modify --ensure-allowlist-integrity call to avoid spurious errors.

We now ensure that the module is disabled and _not_ enabled before
failing the build.

Bug: 280439299
Test: m nothing --ensure-allowlist-integrity --bazel-mode-staging (on
master and aosp)

Change-Id: I59c969a27b064f07913a511cb29bc06d23daa371

android/config.go

@@ -1929,6 +1929,10 @@ func (c *config) GetMixedBuildsEnabledModules() map[string]struct{} {
 	return c.mixedBuildEnabledModules
 }
 
+func (c *config) GetMixedBuildsDisabledModules() map[string]struct{} {
+	return c.mixedBuildDisabledModules
+}
+
 func (c *config) LogMixedBuild(ctx BaseModuleContext, useBazel bool) {
 	moduleName := ctx.Module().Name()
 	c.mixedBuildsLock.Lock()