axi4_lite_cfg with bind_aw

[staskau]

axi::axi4_lite_cfg does not work with bind_aw function because all signals are wired there, including aw_user.bind(o.aw_user), although the width of aw_user in axi4_lite_cfg is USERWIDTH = 0

This leads to the following error message

[E] [ 0 s ](E5) out of bounds: sc_uint[_base] initialization: length = 0 violates 1 <= length <= 64 [FILE:/scratch/stas/repos/Tests/Raven/Minres-SystemC/src/sysc/datatypes/int/sc_uint_base.cpp:345]