Updated elf_parser Makefile for new googletest
Updated elf_parser Makefile for new googletest

As soon as now googletest is build in different way, the makefiles for unit_tests should be updated accordingly

MIPT-ILab/mipt-mips,MIPT-ILab/mipt-mips-2015,MIPT-ILab/mipt-mips-2015,MIPT-ILab/mipt-mips,MIPT-ILab/mipt-mips-2015,gkorepanov/mipt-mips,MIPT-ILab/mipt-mips-2015