Fix sdk_version: "system_current" when Platform_sdk_final=true

When PLATFORM_VERSION_CODENAME is set to REL Platform_sdk_final
becomes true, which causes the return value of sdkVersionToNumber
for "system_current" to a real version number instead of
FutureApiLevel.  This enables the check against
PlatformSystemSdkVersions, which doesn't contain "current".  Use
the numeric value instead.

Fixes: 129786845
Test: sdk_test.go
Change-Id: If7cf211cc01c5fbf3e3ece3c3f604718a13d5a9b
diff --git a/android/config.go b/android/config.go
index fff77ca..2e0750b 100644
--- a/android/config.go
+++ b/android/config.go
@@ -200,12 +200,14 @@
 func TestConfig(buildDir string, env map[string]string) Config {
 	config := &config{
 		productVariables: productVariables{
-			DeviceName:           stringPtr("test_device"),
-			Platform_sdk_version: intPtr(26),
-			AAPTConfig:           []string{"normal", "large", "xlarge", "hdpi", "xhdpi", "xxhdpi"},
-			AAPTPreferredConfig:  stringPtr("xhdpi"),
-			AAPTCharacteristics:  stringPtr("nosdcard"),
-			AAPTPrebuiltDPI:      []string{"xhdpi", "xxhdpi"},
+			DeviceName:                  stringPtr("test_device"),
+			Platform_sdk_version:        intPtr(26),
+			DeviceSystemSdkVersions:     []string{"14", "15"},
+			Platform_systemsdk_versions: []string{"25", "26"},
+			AAPTConfig:                  []string{"normal", "large", "xlarge", "hdpi", "xhdpi", "xxhdpi"},
+			AAPTPreferredConfig:         stringPtr("xhdpi"),
+			AAPTCharacteristics:         stringPtr("nosdcard"),
+			AAPTPrebuiltDPI:             []string{"xhdpi", "xxhdpi"},
 		},
 
 		buildDir:     buildDir,