[CI] Add possibility to test for specific datatype (#1191)
[CI] Add possibility to test for specific datatype (#1191)

* ci-add-parameter-bitness(1) Rename some existing params for clarity.

* ci-add-parameter-bitness(2) Add and engage params.DATATYPE_*

* ci-add-parameter-bitness(3) Typo
ROCmSoftwarePlatform/MIOpen,ROCmSoftwarePlatform/MIOpen,ROCmSoftwarePlatform/MIOpen,ROCmSoftwarePlatform/MIOpen,ROCmSoftwarePlatform/MIOpen