Limit release config inheritance from aliases

If the release config has a name matching build prefixes, it may not
inherit from an alias.

Bug: 340208722
Bug: 328495189
Test: manual
Change-Id: Idb7b1fa372db980c5732b700663553b7a9bf4a36

cmd/release_config/release_config_lib/release_config.go

@@ -162,6 +162,9 @@ func (config *ReleaseConfig) GenerateReleaseConfig(configs *ReleaseConfigs) erro
 		if _, ok := myInheritsSet[inherit]; ok {
 			continue
 		}
+		if isBuildPrefix && configs.Aliases[inherit] != nil {
+			return fmt.Errorf("%s cannot inherit from alias %s", config.Name, inherit)
+		}
 		myInherits = append(myInherits, inherit)
 		myInheritsSet[inherit] = true
 		iConfig, err := configs.GetReleaseConfig(inherit)