devel/gdb: Upgrade to 8.2.

[jhb]

Summary

• Remove patches for upstream commits in 8.2.
• Add an upstream patch to include NT_PROCSTAT_AUXV, NT_PROCSTAT_PS_STRINGS, and NT_PROCSTAT_VMMAP notes in core dumps generated by 'gcore'.
• Update kgdb for changes in 8.2.
• Add 'USES=gettext-runtime'

Test Plan

• light testing of kgdb on amd64
• poudriere testport of amd64 on head and i386 on 11.2

[pizzamig]

Hi back today from holidays.
I'll run my tests on it ASAP (tomorrow morning or during EuroBSD).
Sorry for the delay, I'll keep you posted

[pizzamig]

my tests are green
good to land!