[fix][rt] support for query multiple SPIR-V supported versions

[jjfumero]

Description

This PR expands the SPIR-V support checker for OpenCL devices with multiple versions supported.

Problem description

If the OpenCL device to use contains as description multiple OpenCL devices, using the OpenCL CL_DEVICE_IL_VERSION, then the correct version was not detected. This PR fixes that.

Backend/s tested

Mark the backends affected by this PR.

• [X] OpenCL
• [ ] PTX
• [X] SPIRV

OS tested

Mark the OS where this PR is tested.

• [x] Linux
• [ ] OSx
• [ ] Windows

Did you check on FPGAs?

If it is applicable, check your changes on FPGAs.

• [ ] Yes
• [X] No

How to test the new patch?

$ make BACKEND=spirv
$ tornado --devices

[jjfumero]

Ready for review