MFH: r506491 r507478 r509122 r509481

www/node: Update 12.4.0 -> 12.6.0

https://nodejs.org/en/blog/release/v12.5.0/
https://nodejs.org/en/blog/release/v12.6.0/

Sponsored by: Miles AS

www/node: Update 12.6.0_1 -> 12.7.0

https://nodejs.org/en/blog/release/v12.7.0/

www/node: Update 12.7.0 -> 12.8.0

https://nodejs.org/en/blog/release/v12.8.0/

The bundled OpenSSL configuration now includes BSD-x86, which this port
can now use. The build for i386 is still using the no-asm variant for
the time being. Assembler errors in BSD-x86/asm-avx2 need to be
investigated to be able to enable asm with the bundled OpenSSL.

While here, regenerate all remaining patches with make makepatch.

Sponsored by: Miles AS

www/node: Update 12.8.0 -> 12.8.1

This is a security release. All Node.js users should consult the security
release summary at
https://nodejs.org/en/blog/vulnerability/aug-2019-security-releases/
for details on patched vulnerabilities.

Security: c97a940b-c392-11e9-bb38-000d3ab229d6
Sponsored by: Miles AS

Approved by: ports-secteam (joneum)