Rename MINIX service(8) to minix-service(8)

IMPORTANT: this change has a docs/UPDATING entry!

This rename is unfortunately necessary because NetBSD has decided to
create its own service(8) utility,

Rename MINIX service(8) to minix-service(8)

IMPORTANT: this change has a docs/UPDATING entry!

This rename is unfortunately necessary because NetBSD has decided to
create its own service(8) utility, and we will want to import theirs
as well. The two can obviously not coexist.

Also move ours from /bin to /sbin, as it is a superuser-only utility.

Change-Id: Ic6e46ffb3a84b4747d2fdcb0d74e62dbea065039

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Integrate ASR instrumentation into build system

ASR instrumentation is now performed on all applicable system services
if the system is built with MKASR=yes. This setting automatically
enables MKMA

Integrate ASR instrumentation into build system

ASR instrumentation is now performed on all applicable system services
if the system is built with MKASR=yes. This setting automatically
enables MKMAGIC=yes, which in turn enables MKBITCODE=yes.

The number of extra rerandomized service binaries to be generated can
be set by passing ASRCOUNT=n to the build system, where n is a number
between 1 and 65536. The default ASRCOUNT is 3, meaning that each
service will have one randomized base binary and three additional
rerandomized binaries. As before, update_asr(8) can be used for
runtime rerandomization.

Change-Id: Icb498bcc6d1cd8d3f6bcc24eb0b32e29b7e750c2

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update_asr(8): fix argument handling

Passing in labels of specific services did not actually work at all.

Change-Id: I9501bc0206f0ce5cf064f1453fdf171c4c930aae