changed HDL_BUILD_DIR to RADIOHDL_BUILD_DIR

libraries/dsp/bf/designs/unb1_fn_bf/hdllib.cfg

libraries/dsp/correlator/designs/unb1_correlator/hdllib.cfg

libraries/io/ddr3/hdllib.cfg

libraries/io/ddr3/src/vhdl/ddr3_pkg.vhd

libraries/io/eth/designs/unb1_eth_10g/hdllib.cfg

libraries/io/eth/hdllib.cfg

libraries/technology/ddr/tech_ddr_component_pkg.vhd

...aries/technology/ddr/tech_ddr_mem_model_component_pkg.vhd

libraries/technology/hdllib.cfg

libraries/technology/ip_arria10/clkbuf_global/compile_ip.tcl

libraries/technology/ip_arria10/complex_mult/compile_ip.tcl

libraries/technology/ip_arria10/ddio/compile_ip.tcl

libraries/technology/ip_arria10/ddr4_4g_1600/compile_ip.tcl

...ies/technology/ip_arria10/ddr4_4g_1600/copy_hex_files.tcl

libraries/technology/ip_arria10/ddr4_4g_2000/compile_ip.tcl

...ies/technology/ip_arria10/ddr4_4g_2000/copy_hex_files.tcl

libraries/technology/ip_arria10/ddr4_8g_2400/compile_ip.tcl

...ies/technology/ip_arria10/ddr4_8g_2400/copy_hex_files.tcl

.../technology/ip_arria10/flash/asmi_parallel/compile_ip.tcl

.../technology/ip_arria10/flash/remote_update/compile_ip.tcl