COMPMID-1188 - Fixed files extensions in GraphUtils.h

Also fixed the calculation of num_elements in access_numpy_tensor

Change-Id: Ic1a394ff829746d7803b81360830bade63b6b82a
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/143132
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
2 files changed