Capture missing dependency error rules

Allow missing dependency errors to be tested by capturing the
missing dependency error rule instead of the originally requested
rule.

Test: all soong tests
Change-Id: Id2b23b9ee354cdafc44fb9adfaf8fe7bab973478

android/testing.go

@@ -179,7 +179,7 @@ func buildParamsFromRule(provider testBuildProvider, rule string) TestingBuildPa
 
 func maybeBuildParamsFromDescription(provider testBuildProvider, desc string) TestingBuildParams {
 	for _, p := range provider.BuildParamsForTests() {
-		if p.Description == desc {
+		if strings.Contains(p.Description, desc) {
 			return newTestingBuildParams(provider, p)
 		}
 	}