[K/N][build] Set kotlin root to get versions.properties file

kotlin-native/gradle/kotlinGradlePlugin.gradle

@@ -9,8 +9,8 @@ project.buildscript.repositories {
     else
         mavenCentral()
 }
-
-File versionPropertiesFile = new File(rootProject.projectDir, "gradle/versions.properties")
+def kotlinRoot = ext.properties.containsKey("rootBuildDirectory") ? file("${ext.rootBuildDirectory}/..") : rootProject.projectDir
+File versionPropertiesFile = new File(kotlinRoot, "gradle/versions.properties")
 def versionProperties = new Properties()
 versionPropertiesFile.withInputStream {
     versionProperties.load(it)

kotlin-native/performance/framework/build.gradle

@@ -4,6 +4,7 @@ import org.jetbrains.kotlin.RunJvmTask
 import org.jetbrains.kotlin.gradle.plugin.mpp.NativeBuildType
 
 buildscript {
+    ext.rootBuildDirectory = file('../..')
     apply from: "$rootProject.projectDir/../gradle/kotlinGradlePlugin.gradle"
 
     repositories {