update neon data source to v2

[jedwards4b]

Description of changes

Updates download path for NEON data, the new path is a virtual address so in the future the
actual location of the server can be updated without further changes here.

Specific notes

Contributors other than yourself, if any:

CDEPS Issues Fixed (include github issue #):

Are there dependencies on other component PRs

• CIME (list) 479181641
• CMEPS (list)

Are changes expected to change answers?

• bit for bit
• different at roundoff level
• more substantial

Any User Interface Changes (namelist or namelist defaults changes)?

• Yes
• No

Testing performed: Hand tested NEON cases.

• (required) aux_cdeps
  • machines and compilers:
  • details (e.g. failed tests):
• (optional) CESM prealpha test
  • machines and compilers
  • details (e.g. failed tests):

Hashes used for testing:

• CIME
  • repository to check out: https://github.com/ESCOMP/CESM.git
  • branch:
  • hash:
• CMEPS
  • repository to check out: https://github.com/ESCOMP/CESM.git
  • branch:
  • hash:
• CESM
  • repository to check out: https://github.com/ESCOMP/CESM.git
  • branch:
  • hash: