add legacy BSD-style timer*() macros in sys/time.h
add legacy BSD-style timer*() macros in sys/time.h

chardi/musl,rofl0r/musl-old,davidlazar/musl,davidlazar/musl,chardi/musl,chneukirchen/musl-chris2,chardi/musl,rofl0r/musl-old,chneukirchen/musl-chris2