Reposition cursor on automatic form save interval

Task: Reposition cursor on automatic form save interval under settings on mUzima for Health Providers

Steps:

• Download and install https://play.google.com/store/apps/details?id=com.muzima (username: admin  password: test)
• Under Settings, once tapping on the automatic form save interval (mins), it prompts a pop-up for inputting a numeric value for automatic form save interval (in minutes).  Currently, the cursor is positioned in the beginning of the previously entered value.  However, the cursor should be positioned at the end of the previously entered value so that it reduces user for one more tap.