Use PlatformSdkVersion from Make

This doesn't need to be hardcoded, and should be updated anyways.

Change-Id: Ie28d0d7655e8db3c02d110ae578a763a69b73f92

android/config.go

@@ -20,6 +20,7 @@ import (
 	"os"
 	"path/filepath"
 	"runtime"
+	"strconv"
 	"strings"
 	"sync"
 
@@ -278,7 +279,7 @@ func (c *config) PlatformVersion() string {
 }
 
 func (c *config) PlatformSdkVersion() string {
-	return "22"
+	return strconv.Itoa(*c.ProductVariables.Platform_sdk_version)
 }
 
 func (c *config) BuildNumber() string {

android/variable.go

@@ -115,7 +115,7 @@ func stringPtr(v string) *string {
 
 func (v *productVariables) SetDefaultConfig() {
 	*v = productVariables{
-		Platform_sdk_version:       intPtr(22),
+		Platform_sdk_version:       intPtr(23),
 		HostArch:                   stringPtr("x86_64"),
 		HostSecondaryArch:          stringPtr("x86"),
 		DeviceName:                 stringPtr("flounder"),