skip test_symeig if MAGMA not detected (#54526)
Summary:
Add proper way to skip test_symeig. In case MAGMA is not detected, skip the test_symeig properly.
Added skipCUDAIfNoMagma decorator.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/54526
Reviewed By: malfet
Differential Revision: D27293640
Pulled By: heitorschueroff
fbshipit-source-id: 245f86540af0e37c8795e80dc003e1ca4c08cd5b
