Previously it couldn't be included alone. Also add a header and include guard, and fix its siblings' include guards. Bug: https://code.google.com/p/android/issues/detail?id=82638 Change-Id: I32139a4bda0a6b015508a2319bf4e1a1453345f2
Some externals tend to use net/ethernet.h. Most of which is in net/if_ether.h. Change-Id: I465d18136b565e56a4bd6678238fe0afef25d913