Add general efisetjmp_arch.h

[calmsacibis995]

A header file needed by efisetjmp.h was created to fix an issue with efilib.h.

[gmbr3]

Thanks for this 😀 - it'll help for software which doesn't include the arch specific includedir

Changes needed:

• Rename commit to something more informational like "Add generic efisetjmp_arch.h"
• Signoff and GPG sign the commit e.g. git commit --amend --signoff -S

[gmbr3]

Build broken

[calmsacibis995]

OK, the commit now has a verifed signature. I was spending some time figuring out on why on earth my commits are not being signed, but finally they are. Also, what exactly failed?

[gmbr3]

Rebase branch if possible - merge commits are annoying

[calmsacibis995]

OK, I rebased the branch on master.

[calmsacibis995]

I corrected a typo that causes the checks to fail on ia32.

[calmsacibis995]

I corrected another typo that causes riscv checks to fail.

[calmsacibis995]

I think now all checks are now going to pass.

[gmbr3]

Rebase (fixup) to one commit

[calmsacibis995]

OK, I there is now only a single commit.

[SamuraiCrow]

I have an old ARM-HF device that might benefit from this fix but it has been sitting unreviewed for 2 months as of tomorrow. If somebody can build a Debian install based on this I could test it.