initialize fields to 1 in map creation

[mvertens]

Description of changes

fix for failed cesm tests

Specific notes

1. This PR initializes fields to 1 that are used in the stream->model map creation. This resolves failures for the following two tests:

SMS_D_Ld3_Vnuopc.f10_f10_mg37.I1850Clm50BgcCrop.cheyenne_intel.clm-default
ERI_D_Ld9_Vnuopc.ne30_g17.I2000Clm50BgcCru.cheyenne_intel.clm-vrtlay

2. This PR also fixes a problem for setting aqua-planet constant values. Currently, this is only used in CESM.

Contributors other than yourself, if any: None

CMEPS Issues Fixed: None

Are there dependencies on other component PRs

• CIME (list)
• 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:

• (required) aux_cdeps
  • machines and compilers: cheyenne/intel
  • details (e.g. failed tests): compare to aug0621 and all results were bfb
• (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
  • hash: 949b0e798
• CESM
  • repository to check out: https://github.com/ESCOMP/CESM.git
  • hash: cesm2_3_alpha05b