Fix test_bitcoin build in makefile.linux-mingw
Fix test_bitcoin build in makefile.linux-mingw

jlay11/sharecoin,jlay11/sharecoin,jlay11/sharecoin,jlay11/sharecoin,ghostlander/Testcoin,ghostlander/Testcoin,jlay11/sharecoin,ghostlander/Testcoin,ghostlander/Testcoin,jlay11/sharecoin