Add support for input tensor of "shape" type

With recent changes for Tile and Reshape operators some input
tensors are now required to have a "shape" type but it's not
supported by the ModelRunner. This patch adds ability to set
input tensors of type TOSA_REF_TYPE_SHAPE.

Signed-off-by: Dmitrii Agibov <dmitrii.agibov@arm.com>
Change-Id: I3b721e933548d0dd72319aeb2de01ae249ccb6a6