[upgrade_SUITE] Set previous major to r16b

When running OTP-17, the previous major release was earlier specified
to r16. This sometimes caused an r16a release to be started, which
would for sure fail the upgrade attempt. The previous major is now
specified to be r16b instead.
erts: Fix cache alignment for ETS write_concurrency locks

Effects if sizeof(erts_smp_rwmtx_t) > 64:
+ Better performance due to less false sharing
- Increased memory footprint per table
inets: Prepare for release
doc: Fix broken links
doc: Fix broken links in Installation Guide
crypto: Fix crypto for debug and valgrind

without relying on opt-version has been built.

Removed ASSERT to make crypto_callback.debug.so work without
dynamic linking to libcrypto.so.
Merge branch 'ia/inets/prep-for-release' into maint

* ia/inets/prep-for-release:
  inets: Prepare for release
Merge branch 'maint'
Merge branch 'siri/cuddle-with-tests' into maint

* siri/cuddle-with-tests:
  [upgrade_SUITE] Set previous major to r16b
Merge branch 'maint'
[reltool] Back out adaption to better quoting on windows

This commit only changes the test. It reverts commit 710a1fa
([reltool] Adapt tests to better quoting of paths on windows) because
the commit that actually changed the quoting behaviour on windows was
moved from the maint branch to master (9633e0e win32: Fix quoting of
paths).
Merge branch 'siri/cuddle-with-tests' into maint

* siri/cuddle-with-tests:
  [reltool] Back out adaption to better quoting on windows
Merge branch 'maint'
Update primary bootstrap
Update preloaded modules
Merge branch 'maint'
Merge branch 'egil/fix-doc-links' into maint

* egil/fix-doc-links:
  doc: Fix broken links in Installation Guide
  doc: Fix broken links
Merge branch 'maint'
crypto: Fix memory leak of EC "keys" and "points"
Merge branch 'sverk/crypto-ec-mem-leak/OTP-11999' into maint

* sverk/crypto-ec-mem-leak/OTP-11999:
  crypto: Fix memory leak of EC "keys" and "points"
  crypto: Fix crypto for debug and valgrind