Use SDK versions defined in buildSrc

common.gradle

@@ -1,8 +1,8 @@
 apply plugin: 'org.jmailen.kotlinter'
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion '29.0.3'
+    compileSdkVersion AndroidConfig.compileSdk
+    buildToolsVersion AndroidConfig.buildTools
 
     buildTypes {
         release {
@@ -31,8 +31,8 @@ android {
     }
 
     defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 29
+        minSdkVersion AndroidConfig.minSdk
+        targetSdkVersion AndroidConfig.targetSdk
         applicationIdSuffix pkgNameSuffix
         versionCode extVersionCode
         versionName "$libVersion.$extVersionCode"