[SYCL] Change ESIMD/aot_mixed.cpp to AOT-compile for all devices

[aelovikov-intel]

This should fix the CI fails on it.

[v-klochkov]

I did not see '-device *' in the list of options of 'ocloc'.
@vmustya suggested using "device gen9:" (see ":" symbol after 9), which means "gen9 and newer".

[aelovikov-intel]

I couldn't find any documentation for it at all. That said:

$ ocloc -file a.cl -device '*'
Build succeeded for : bdw.
Build succeeded for : skl.
Build succeeded for : kbl.
Build succeeded for : cfl.
Build succeeded for : apl.
Build succeeded for : glk.
Build succeeded for : whl.
Build succeeded for : aml.
Build succeeded for : cml.
Build succeeded for : icllp.
Build succeeded for : lkf.
Build succeeded for : ehl.
Build succeeded for : tgllp.
Build succeeded for : rkl.
Build succeeded for : adl-s.
Build succeeded for : adl-p.
Build succeeded for : adl-n.
Build succeeded for : dg1.
Build succeeded for : acm-g10.
Build succeeded for : acm-g11.
Build succeeded for : acm-g12.
Build succeeded for : pvc-sdv.
Build succeeded for : pvc.

From https://www.phoronix.com/news/Intel-Compute-20.07.15711:

There is also -device * now supported if wanting to compile all hardware targets supported by the Intel compiler.

I'm sure I had found the proper docs in the past, but it seems impossible now...

[v-klochkov]

'device *' doesn't work accordingly to our CI: http://icl-jenkins.sc.intel.com:8080/blue/organizations/jenkins/LLVM-Test-Suite-CI-TMP%2FLLVM-Test-Suite-CI-Linux/detail/LLVM-Test-Suite-CI-Linux/3241/pipeline
The test fails at ocloc compilation " LLVM ERROR: vc::translateBuild: unsupported platform"

Please try "-device gen9:"