the definitions in socket.h are meant to reflect the ones in linux for each respective target, but are sometimes difficult to maintain.
hppa (AKA parisc) was initially merged with an independent file that mirrors more closely the corresponding one in linux but hasn't been updated since. this series updates hppa with the latest bits from linux 4.14 and makes sure all relevant architectures had a sockbits file that would be easy to maintain going forward. most of the changes are pretty mechanical and I had made (thanks to Laurent's tough review) every effort to ensure no value gets changed accidentaly and all changes (even the ones where the value remains but is now in a different base to better match what was used in the linux headers) are documented, so it should be fairly safe and will fix bugs (mostly for sparc).
