fix: Check for existence of_ SC_AVPHYS_PAGES to fix MacOS compilation. #5997

Job	Run time
is_not_draft_pull_request	3s
are_submodules_in_sync	12s
baseline_log	6s
if_not_unassigned_pull_request	2s
mac_builds	4s
code_coverage / build_test_deploy	28s
Check code style / build_test_deploy	44s
Check documentation / build_test_deploy	42s
Pangea 2 (centos 7.6, gcc 8.3.0, open-mpi 2.1.5, mkl 2019.3) / build_test_deploy	31s
Sherlock CPU (centos 7.9.2009, gcc 10.1.0, open-mpi 4.1.2, openblas 0.3.10) / build_test_deploy	42s
Pecan CPU (centos 7.7, gcc 8.2.0, open-mpi 4.0.1, mkl 2019.5) / build_test_deploy	29s
Ubuntu (20.04, gcc 10.5.0, open-mpi 4.0.3) - github codespaces / build_test_deploy	42s
Ubuntu (20.04, gcc 9.4.0, open-mpi 4.0.3) / build_test_deploy	42s
Ubuntu (22.04, clang 15.0.7, open-mpi 4.1.2) / build_test_deploy	42s
Ubuntu (22.04, gcc 11.4.0, open-mpi 4.1.2) / build_test_deploy	29s
Ubuntu (22.04, gcc 12.3.0, open-mpi 4.1.2) / build_test_deploy	43s
Ubuntu debug (20.04, gcc 10.5.0, open-mpi 4.0.3) - github codespaces / build_test_deploy	45s
Centos (7.7, gcc 8.3.1, open-mpi 1.10.7, cuda 11.8.89) / build_test_deploy	49s
Pecan GPU (centos 7.7, gcc 8.2.0, open-mpi 4.0.1, mkl 2019.5, cuda 11.5.119) / build_test_deploy	47s
Sherlock GPU (centos 7.9.2009, gcc 10.1.0, open-mpi 4.1.2, openblas 0.3.10, cuda 11.7.1,) / build_test_deploy	34s
Ubuntu CUDA (20.04, clang 10.0.0 + gcc 9.4.0, open-mpi 4.0.3, cuda-11.8.89) / build_test_deploy	34s
Ubuntu CUDA debug (20.04, clang 10.0.0 + gcc 9.4.0, open-mpi 4.0.3, cuda-11.8.89) / build_test_deploy	48s
run_integrated_tests	1s
check_that_all_jobs_succeeded	1s
	11m 40s

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