l1-s7 move android sourceset to multiplatform directories

Author: Alex009

mpp-library/build.gradle

@@ -8,6 +8,27 @@ android {
         minSdkVersion 21
         targetSdkVersion 28
     }
+
+    sourceSets {
+        main {
+            setRoot('src/androidMain')
+        }
+        release {
+            setRoot('src/androidMainRelease')
+        }
+        debug {
+            setRoot('src/androidMainDebug')
+        }
+        test {
+            setRoot('src/androidUnitTest')
+        }
+        testRelease {
+            setRoot('src/androidUnitTestRelease')
+        }
+        testDebug {
+            setRoot('src/androidUnitTestDebug')
+        }
+    }
 }
 
 kotlin {