IRSL: Fix search for Windows redist files with Intel Classic compiler

The oneAPI icx/ifx compilers are under `.../windows/bin`.
The classic icl/ifort compilers are under `.../windows/bin/intel64`.
Add paths to the redist directory relative to both locations.

Fixes: #22673
32 jobs for !6557 with irsl-intel-variants in 16 minutes and 55 seconds (queued for 1 second)
latest detached
Status Name Job ID Coverage
  Build
manual build:centos6-x86_64 #6185312
cmake build docker linux manual
manual build:fedora34-ninja #6185313
cmake build docker linux linux-3.17 manual
manual build:macos-x86_64-makefiles #6185315
cmake macos shell xcode-12.5 nonconcurrent manual
manual build:macos-x86_64-ninja #6185314
cmake macos shell xcode-12.5 nonconcurrent manual
manual build:windows-vs2019-x64-ninja #6185316
cmake windows shell vs2019 msvc-19.29-16.11 nonconcurrent manual
passed lint:codespell #6185308
cmake build docker linux

00:00:38

passed lint:debian10-iwyu #6185309
cmake build docker linux

00:06:48

passed lint:fedora34-sphinx #6185311
cmake build docker linux linux-3.17

00:05:25

passed lint:fedora34-tidy #6185310
cmake build docker linux linux-3.17

00:16:55

 
  Test
created test:fedora34-ninja #6185317
cmake docker linux linux-3.17 x11
created test:macos-x86_64-makefiles #6185319
cmake macos shell xcode-12.5 nonconcurrent
created test:macos-x86_64-ninja #6185318
cmake macos shell xcode-12.5 nonconcurrent
created test:windows-vs2019-x64-ninja #6185320
cmake windows shell vs2019 msvc-19.29-16.11 nonconcurrent
 
  Test Ext
created test:cuda10.2-nvidia #6185323
cmake cuda-rt docker linux
created test:debian10-ninja #6185321
cmake build docker linux linux-3.17
created test:fedora34-makefiles #6185322
cmake build docker linux linux-3.17
created test:fedora34-ninja-multi #6185324
cmake build docker linux linux-3.17
created test:macos-x86_64-xcode #6185325
cmake macos shell xcode-12.5 concurrent
created test:windows-vs2019-x64 #6185326
cmake windows shell vs2019 msvc-19.29-16.11 concurrent
 
  External
passed cdash

passed ghostflow-check-master

passed ghostflow-stager

passed cdash

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passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

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passed ghostflow-stager