graphics/openshadinglanguage: Fix build with LLVM22

Get patches from upstream:
https://github.com/AcademySoftwareFoundation/OpenShadingLanguage/commit/7bcf83eb859b4ce7ffcc599835ec2e6058fbd12f
https://github.com/AcademySoftwareFoundation/OpenShadingLanguage/pull/2086

https://github.com/AcademySoftwareFoundation/OpenShadingLanguage/commit/1a72c471fed2aeb18c4e58f9035b56f55c250185
https://github.com/AcademySoftwareFoundation/OpenShadingLanguage/pull/2124

While here refresh patches.

PR: 296378
Approved by: Shane <FreeBSD@ShaneWare.Biz> (maintainer, timeout 2 weeks)
Sponsored by: UNIS Labs