[mlir][tosa] Change zero points of convolution ops to required inputs (#127679)
This patch changes the input_zp and weight_zp for convolution operators
to be required inputs
in order to align with the TOSA Spec 1.0.
Convolution operators affected are:
CONV2D, CONV3D, DEPTHWISE_CONV2D, and TRANSPOSE_CONV2D.
Signed-off-by: Tai Ly <tai.ly@arm.com>