cmd/gogio: allow missing tool version components

This commit changes the way that gogio searches for build tools
so that it correctly identifies versions like '31' as equivalent
to '31.0.0'. The Android SDK appears to not provide version
components in the path name when the component is zero.

Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>

cmd/gogio/androidbuild.go

@@ -955,9 +955,6 @@ loop:
 	for _, path := range paths {
 		name := filepath.Base(path)
 		s := strings.SplitN(name, ".", 3)
-		if len(s) != len(bestVer) {
-			continue
-		}
 		var version [3]int
 		for i, v := range s {
 			v, err := strconv.Atoi(v)