[mlir][tosa] Add support for assert equal shape op (#176900)
Adds support for assert_equal_shape operation after spec change:
https://github.com/arm/tosa-specification/commit/575a50016de50d227eb517775eb4e7b137421fa1
This includes:
- Operator definition
- Tests
Change-Id: I6652bbcbd5e3716f140681b9d73ef8940564d7d3
Signed-off-by: Iliyan Georgiev <Iliyan.Georgiev@arm.com>