govet: skip fieldalignment test on 32bit platforms (#5463)

Author: realsn0w

pkg/golinters/govet/testdata/govet_fieldalignment.go

@@ -1,3 +1,4 @@
+//go:build !(386 || arm || mips || mipsle)
 //golangcitest:args -Egovet
 //golangcitest:config_path testdata/govet_fieldalignment.yml
 package testdata

test/testshared/directives.go

@@ -136,6 +136,10 @@ func evaluateBuildTags(tb testing.TB, line string) bool {
 			return true
 		}
 
+		if tag == runtime.GOARCH {
+			return true
+		}
+
 		if buildTagGoVersion(tag) {
 			return true
 		}