Bug 1336: fix doxygen issue regarding EIGEN_CWISE_BINARY_RETURN_TYPE (grafted from 70009b588a058de2366954e5b25bc49215f790d8)
Bug 1336: fix doxygen issue regarding EIGEN_CWISE_BINARY_RETURN_TYPE
(grafted from 70009b588a058de2366954e5b25bc49215f790d8)

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