Provisioning: Add Android NDK ROOT to environment variable

Task-number: QTQAINFRA-3181
Task-number: QTBUG-74952
Change-Id: I4cc6936c3b3eef32a1013888ced3950cd1f39407
(cherry picked from commit 30e7bf5)
Reviewed-by: Johanna Äijälä <[email protected]>
Reviewed-by: Liang Qi <[email protected]>

Author: hehalmet

coin/provisioning/qtci-macos-10.14-x86_64/30-android.sh

@@ -76,6 +76,7 @@ ls -l "$sdkTargetFolder"
 
 SetEnvVar "ANDROID_SDK_HOME" "$sdkTargetFolder"
 SetEnvVar "ANDROID_NDK_HOME" "$targetFolder/android-ndk-$ndkVersion"
+SetEnvVar "ANDROID_NDK_ROOT" "$targetFolder/android-ndk-$ndkVersion"
 SetEnvVar "ANDROID_NDK_HOST" "darwin-x86_64"
 SetEnvVar "ANDROID_API_VERSION" "$sdkApiLevel"