devel/gdb: Updating to gdb 8.0.1

[pizzamig]

Summary

devel/gdb: Updating to gdb 8.0.1
Resolving tons of warning
Fixing the type of literal string as char const *
Fixing variables order and adding the license file
Making portlint happy

Reviewd by\: jhb
Approved by\: olivier (mentor)
Approved by\: lme (mentor)

Test Plan

porlint happy
Built on 10.3 11.0 11.1 on i386 and amd64

[olivier]

Lot's of patch files were renamed with a special name: Is this correct ?

[pizzamig]

In D12525#259844, @olivier wrote:

Lot's of patch files were renamed with a special name: Is this correct ?

I renamed the patches to follow the General Rules for Patching (Paragraph 4.4.1 of the Porters Handbook). Moreover, portlint reported 17 warnings, caused by the "wrong" patch format.
I hope I fixed it correctly.

[jhb]

devel/gdb/Makefile

15 ↗

(On Diff #33522)

We could updated this comment to say "untested on sparc64, might work" as that's the only architecture where that is true.

[pizzamig]

Rephrasing the comment about supported architecture