yosys-plugins: Update XDC plugin to support LOC properties
yosys-plugins: Update XDC plugin to support LOC properties

Signed-off-by: Tomasz Michalak <a2fdaa543b4cc5e3d6cd8672ec412c0eb393b86e@antmicro.com>

SymbiFlow/conda-packages,SymbiFlow/conda-packages