Fix cornernode normal #8101

Job	Run time
Build SU2 (BaseMPI)	13m 30s
Build SU2 (asan) (BaseNoMPI-asan)	15m 34s
Build SU2 (ReverseMPI)	14m 25s
Build SU2 (asan) (ReverseNoMPI-asan)	48m 1s
Build SU2 (ForwardMPI)	11m 39s
Build SU2 (BaseNoMPI)	7m 35s
Build SU2 (ReverseNoMPI)	12m 0s
Build SU2 (tsan) (BaseOMP-tsan)	11m 59s
Build SU2 (ForwardNoMPI)	10m 17s
Build SU2 (tsan) (ReverseOMP-tsan)	29m 6s
Build SU2 (BaseOMP)	7m 32s
Build SU2 (ReverseOMP)	14m 40s
Build SU2 (ForwardOMP)	10m 11s
Unit Tests (test_driver)	59s
Regression Tests (vandv.py)	2m 51s
Unit Tests (test_driver_AD)	52s
Regression Tests (tutorials.py)	4m 19s
Unit Tests (test_driver_DD)	51s
Regression Tests (parallel_regression.py)	13m 45s
Regression Tests (parallel_regression_AD.py)	9m 7s
Regression Tests (serial_regression.py)	15m 47s
Regression Tests (serial_regression_AD.py)	5m 1s
Regression Tests (hybrid_regression.py)	10m 50s
Regression Tests (hybrid_regression_AD.py)	3m 54s
Thread Sanitizer Tests (hybrid_regression.py)	27m 3s
Thread Sanitizer Tests (hybrid_regression_AD.py)	10m 53s
Address Sanitizer Tests (serial_regression.py)	14m 59s
Address Sanitizer Tests (serial_regression_AD.py)	6m 33s
	5h 34m 13s

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