upgrade set_env shell script to match accelerator-project latest

set_env.sh

@@ -13,7 +13,9 @@
 # Source set_env script from soctools_flow
 source soctools_flow/bin/project_setup.sh $@
 if [ ! -f .dma350_configured ]; then
-    cp nanosoc_tech/nanosoc/sldma350_tech/config/address_map_m1_nanosoc.sv $ARM_IP_LIBRARY_PATH/DMA-350/CG096-r0p0-00rel0/CG096-BU-50000-r0p0-00rel0/dma350/logical/models/modules/generic/address_map_m1_nanosoc.sv
+    if [ ! -f $ARM_IP_LIBRARY_PATH/DMA-350/CG096-r0p0-00rel0/CG096-BU-50000-r0p0-00rel0/dma350/logical/models/modules/generic/address_map_m1_nanosoc.sv ]; then
+        cp nanosoc_tech/nanosoc/sldma350_tech/config/address_map_m1_nanosoc.sv $ARM_IP_LIBRARY_PATH/DMA-350/CG096-r0p0-00rel0/CG096-BU-50000-r0p0-00rel0/dma350/logical/models/modules/generic/address_map_m1_nanosoc.sv
+    fi
     make -C nanosoc_tech/nanosoc/sldma350_tech/ config_dma_ahb
     touch .dma350_configured
 fi