[SYCL][RTC] Adopt recent changes from sycl-post-link

[jopperm]

Incorporates recent changes to sycl-post-link into the RTC-specific version:

• [SYCL] Embed bfloat16 devicelib into executable if necessary #16729
• [SYCL] Fix a bug when using no device split and reqd_work_group_size #16236
• [DevTSAN] Support thread sanitizer for device offloading in sycl-tool-chain #17211

[jopperm]

@jinge90 I believe that the new bfloat16 device library image mechanism breaks if device binaries are removed again from the program manager. The problem boils down to m_ExportedSymbolImages containing references to destroyed images the next time an image imports the bfloat16 functions.
I've added a workaround for SYCL-RTC in this PR (always loading and cleaning up the bfloat16 device library images), but it would be great if you could look at the problem in general at some point. CC @KseniyaTikhomirova who also had an interest in ProgramManager::removeImages, IIRC.

[jinge90]

@jinge90 I believe that the new bfloat16 device library image mechanism breaks if device binaries are removed again from the program manager. The problem boils down to m_ExportedSymbolImages containing references to destroyed images the next time an image imports the bfloat16 functions. I've added a workaround for SYCL-RTC in this PR (always loading and cleaning up the bfloat16 device library images), but it would be great if you could look at the problem in general at some point. CC @KseniyaTikhomirova who also had an interest in ProgramManager::removeImages, IIRC.

Hi, @jopperm
I used dlopen/dlcose code which will trigger removeImage to reproduce a crash, it should be a bug in addImage. Here is a quick fix for the crash issue in my side: #17461 , could you try in your side to see if the issue is gone?
Thanks very much for pointing out this!