android: Move versionCode to liboSettings.gradle.in.

Change-Id: I32ab573831d4b0d5ef08787ae6c8234b3caad0ee

android/app/build.gradle

@@ -6,11 +6,9 @@ apply from: 'liboSettings.gradle'
 android {
     compileSdkVersion 28
     defaultConfig {
-        // applicationId defined in liboSettings.gradle
+        // applicationId, versionCode and versionName are defined in liboSettings.gradle
         minSdkVersion 21
         targetSdkVersion 28
-        versionCode 1
-        // versionName defined in liboSettings.gradle
     }
     buildTypes {
         debug {

android/app/liboSettings.gradle.in

@@ -17,6 +17,6 @@ ext {
 }
 android.defaultConfig {
     applicationId 'org.libreoffice.androidapp'
-    //versionCode project.hasProperty('cmdVersionCode') ? cmdVersionCode.toInteger() : 1
-    versionName '1.0/@LOOLWSD_VERSION@'
+    versionCode 1
+    versionName '@LOOLWSD_VERSION@'
 }