aarch64: mingw: fix support for posix threading Currently without this --with-threads=pthread fails. gcc/ChangeLog: * config/i386/mingw-pthread.h: rename to generic config/mingw/mingw-pthread.h * config.gcc [aarch64-*-mingw*]: Fix support for posix threading on aarch64 mingw targets. Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>