register conv2d_transpose as generic function (#1137)

topi/python/topi/nn/conv2d_transpose.py

@@ -9,6 +9,7 @@ from .util import get_pad_tuple
 from ..util import simplify
 
 
+@tvm.target.generic_func
 def conv2d_transpose_nchw(Input, Filter, strides, padding):
     """Transposed 2D convolution nchw forward operator.