[llvm] [BOLT][AArch64] Basic support for Linux kernel (PR #118022)

[Maksim Panchenko via llvm-commits]

================
@@ -1023,7 +1033,8 @@ Error LinuxKernelRewriter::readExceptionTable() {
   if (!ExceptionsSection)
     return Error::success();
 
-  if (ExceptionsSection->getSize() % EXCEPTION_TABLE_ENTRY_SIZE)
+  size_t EntrySize = getExceptionTableEntrySize();
----------------
maksfb wrote:

```suggestion
  const size_t EntrySize = getExceptionTableEntrySize();
```

https://github.com/llvm/llvm-project/pull/118022