vendor/cm: fix Sprint MMS apn being set as default

Sprint CDMA MMS APN was being incorrectly set as default and hipri,
causing LTE connectivity issues because it was prioritized over the
other APN entries for LTE and EHRPD.

Change-Id: I6ca4fd172e2ecc64ca7a2c3fbca5327be61e7b5c
Add lines for automatic goo updates pointing at goo.im/devs/beanstalk

I requested and was granted access for this goo account specifically
to use as a shared account for ALL of the builders/porters for
BeanStalk.  What you will need to do is get in touch with me
and i will provide the password and create a folder for your
device and let you know which one it is.  From there you just
have to upload your new builds every release and OTA should work fine

Signed-off-by: scott <scott@ubuntu.com>