Fixing single endpoint type configuring issue

[CrowleyRajapakse]

Purpose

fixes wso2/apk#2221

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 63.63636% with 8 lines in your changes are missing coverage. Please review.

Project coverage is 44.56%. Comparing base (9068d7c) to head (fc13b10).
Report is 1 commits behind head on master.

Files	Patch %	Lines
apim-apk-agent/pkg/transformer/transformer.go	63.63%	7 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1123      +/-   ##
==========================================
+ Coverage   44.48%   44.56%   +0.08%     
==========================================
  Files          18       18              
  Lines        1857     1876      +19     
==========================================
+ Hits          826      836      +10     
- Misses        963      971       +8     
- Partials       68       69       +1     

Flag	Coverage Δ
apim-apk-agent	44.56% <63.63%> (+0.08%)	⬆️

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