fix(android): Broken build due to conditional import of kotlin (#1412)

android/build.gradle

@@ -16,6 +16,14 @@ buildscript {
       classpath("com.android.tools.build:gradle:3.6.0")
       classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${getExtOrDefault('kotlinVersion')}")
     }
+  } else {
+    repositories {
+      jcenter()
+    }
+
+    dependencies {
+      classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${getExtOrDefault('kotlinVersion')}")
+    }
   }
 }