Fixed the coefficient accessors use for the 2d and 3d case when compiling without cxx11 support.
Fixed the coefficient accessors use for the 2d and 3d case when compiling without cxx11 support.

ritsu1228/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,ritsu1228/eigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,ROCmSoftwarePlatform/hipeigen,pasuka/eigen,pasuka/eigen,pasuka/eigen,ritsu1228/eigen,ritsu1228/eigen