AC-757 Fixed EncounterRoomDAO tests

[rishabh-997]

Description of what I changed

The test for getAllEncountersByType was completely wrong and had to do significant changes to pass this test.

Issue I worked on

JIRA Issue: https://issues.openmrs.org/browse/AC-754

Checklist: I completed these to help reviewers :)

• My pull request only contains ONE single commit
  (the number above, next to the 'Commits' tab is 1).

• I have added tests to cover my changes. (If you refactored
  existing code that was well tested you do not have to add tests)

• All new and existing tests passed.

• My pull request is based on the latest changes of the master branch.

[codecov-io]

Codecov Report

Merging #740 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #740      +/-   ##
==========================================
- Coverage   11.82%   11.78%   -0.04%     
==========================================
  Files         237      238       +1     
  Lines       10583    10614      +31     
  Branches     1019     1021       +2     
==========================================
  Hits         1251     1251              
- Misses       9251     9282      +31     
  Partials       81       81              

Impacted Files	Coverage Δ
...activities/dialog/CameraOrGalleryPickerDialog.java	0.00% <0.00%> (ø)
...ivities/addeditpatient/AddEditPatientFragment.java	0.00% <0.00%> (ø)
...rs/mobile/activities/dialog/CustomDialogModel.java	0.00% <0.00%> (ø)

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[f4ww4z]

LGTM @rishabh-997