Update Noahmp for unary operation bug fix #2 (#1664)

TYPE: bug fix

KEYWORDS: unary operator, Noahmp

SOURCE: Internal

DESCRIPTION OF CHANGES:
Problem:
Found more occurrences of `a* -b` in Noahmp. A space is in between `*` and `-1`. OK even for Cray, but it is still non-standard.

Solution:
The same solution is applied: add parentheses: `a * (-b)`.

ASSOCIATED REPOSITORY CHANGE:
NCAR/noahmp#33

LIST OF MODIFIED FILES:
modified: phys/noahmp

TESTS CONDUCTED: 
1. More code is fixed.
2. Jenkins tests are all passing.