Add per-module phony targets for lint checks

Simplify running lint on a module by adding a per-module phony target,
e.g. Gallery2-lint.

Bug: 216462289
Test: m Gallery2-lint
Change-Id: I9d4ab362bb116d49f00fc3f79d61d7239528d575

java/lint.go

@@ -542,6 +542,10 @@ func (l *linter) lint(ctx android.ModuleContext) {
 	if l.buildModuleReportZip {
 		l.reports = BuildModuleLintReportZips(ctx, l.LintDepSets())
 	}
+
+	// Create a per-module phony target to run the lint check.
+	phonyName := ctx.ModuleName() + "-lint"
+	ctx.Phony(phonyName, xml)
 }
 
 func BuildModuleLintReportZips(ctx android.ModuleContext, depSets LintDepSets) android.Paths {