MLBEDSW-11112 Add support for DepthwiseConv2D with non-const weights
- Transposes depthwise weights: [Kh, Kw, Cin, M] -> [M, Kh, Kw, Cin] to prepare it for decomposition.
- Expand non-const conv decomposition to handle depthwise, also decomposed into Bias load (NullPool) followed by a series of MatMul.
Change-Id: I66beb6afbfc4a2f872e05d2acfff06800f76c724 Signed-off-by: Jacob Bohlin jacob.bohlin@arm.com