Update device-streams binaries from Roc Vallès

- Split device-streams.tar.gz.uue into seperate source and
binaries device-streams-2.2.1-src.tar.gz and device-streams-2.2.1.lha
to match upstream

Update device-streams binaries from Roc Vallès

- Split device-streams.tar.gz.uue into seperate source and
binaries device-streams-2.2.1-src.tar.gz and device-streams-2.2.1.lha
to match upstream
- Add device-streams.README.md from upstream
- Add simple 'update' script to help updating next time
- Binaries now avoid 32 bit file offset issues (they use 64 bit
offsets where supported, and otherwise avoid corrupting data due
to 32 bit limits)
- Binaries now built with updated bebbo/amiga-gcc toolchain

Pullup: netbsd-10, netbsd-9 and possibly netbsd-8

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Create a new bsd.hostinit.mk file and put the build definitions for all host
programs there; make all Makefiles that use bsd.hostprog.mk include it.
Namely turn off MKREPRO and don't make lint, man p

Create a new bsd.hostinit.mk file and put the build definitions for all host
programs there; make all Makefiles that use bsd.hostprog.mk include it.
Namely turn off MKREPRO and don't make lint, man pages, info files etc.
Remove the Makefile.inc files that contained these same settings, and
remove the settings from Makefile.host

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Update loadbsd to 2.17, which can load ELF kernels.
Remove obsolete loadbsd binaries from installation/misc as they
have become useless (and can only load a.out kernels).

Change remaining instances of ${RELEASEDIR}/${MACHINES} to
${RELEASEDIR}/${RELEASEMACHINEDIR}

Only provide uncompressed tools, so that they can be run directly
from CD-ROM, and buggy CD-ROM file systems aren't confused by two
tools with the same prefix.

AmigaDOS installation tools moved to distrib/amiga/stand.