RDKB-63552: Fix for WebPA crash

[NetajiPanigrahi]

Reason for change: WebPA GET failed for wildcard request
Test Procedure: The regression test should also succeed.
Risks: High
Priority: P0
Signed-off-by: Netaji_Panigrahi@comcast.com

[schmidtw]

Can a unit test be added that shows why this is important?

[codecov]

Codecov Report

❌ Patch coverage is 95.37037% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.68%. Comparing base (d04bea9) to head (5dd9709).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
source/broadband/webpa_parameter.c	70.58%	0 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #313      +/-   ##
==========================================
+ Coverage   86.60%   86.68%   +0.08%     
==========================================
  Files          25       25              
  Lines        9332     9427      +95     
  Branches      898      916      +18     
==========================================
+ Hits         8082     8172      +90     
  Misses        846      846              
- Partials      404      409       +5     

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[sadhyama]

Can a unit test be added that shows why this is important?

Added unit tests with NULL param values. Hence marking this as resolved.