Rename ip_altera_mf into ip_stratixiv.

libraries/technology/fifo/tech_fifo_component_pkg.vhd

libraries/technology/fifo/tech_fifo_dc.vhd

libraries/technology/fifo/tech_fifo_dc_mixed_widths.vhd

libraries/technology/fifo/tech_fifo_sc.vhd

libraries/technology/flash/tech_flash_component_pkg.vhd