Android SDK binaries insufficient permissions. (#747)

* added correct rules for android sdk folder.

* added for ubuntu 16 also.

* added sudo for chmod operation.

* removed redundunt sudo.

* changed chmod parameters for a+X

Co-authored-by: Dariy.Nurgaleev <d.nurgaleev@trueengineering.ru>

images/linux/scripts/installers/1604/android.sh

@@ -37,6 +37,8 @@ else
     exit 1
 fi
 
+# Add required permissions
+chmod -R a+X ${ANDROID_SDK_ROOT}
 
 # Install the following SDKs and build tools, passing in "y" to accept licenses.
 echo "y" | ${ANDROID_SDK_ROOT}/tools/bin/sdkmanager \