[llvm] [BOLT] Add writing support for Linux kernel ORC (PR #80950)

[Maksim Panchenko via llvm-commits]

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@@ -207,8 +218,6 @@ void LinuxKernelRewriter::insertLKMarker(uint64_t PC, uint64_t SectionOffset,
 }
 
 void LinuxKernelRewriter::processLKSections() {
-  assert(BC.IsLinuxKernel && "Linux kernel binary expected.");
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maksfb wrote:

This function used to be under `RewriteInstance`. Since I moved it some time ago under `LinuxKernelRewriter` it became obsolete. Can put in a separate PR.

https://github.com/llvm/llvm-project/pull/80950