Bug 1348: Document EIGEN_MAX_ALIGN_BYTES and EIGEN_MAX_STATIC_ALIGN_BYTES, and reflect in the doc that EIGEN_DONT_ALIGN* are deprecated. (grafted from 243d240007fc901075ff0d037dc483a75bd94548)
Bug 1348: Document EIGEN_MAX_ALIGN_BYTES and EIGEN_MAX_STATIC_ALIGN_BYTES,
and reflect in the doc that EIGEN_DONT_ALIGN* are deprecated.
(grafted from 243d240007fc901075ff0d037dc483a75bd94548)

ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen