MLBEDSW-11094 Fix RewriteNonConstWeightOp for Conv3D
Padding was not done in the depth dimension for TOSA Conv3D in GraphIrOptimiser::RewriteNonConstWeightOp.
Change-Id: I18dbc41da65af20158835fc7897f7a790652c8dd Signed-off-by: Fredrik Svedberg fredrik.svedberg@arm.com