Rollup merge of rust-lang#69125 - jethrogb:jb/cleanup-sgx-entry, r=Dylan-DPC

Add comment to SGX entry code

Meant to force push this to be included in rust-lang#69040, but forgot

r? @nagisa

Author: Dylan-DPC

src/libstd/sys/sgx/abi/entry.S

@@ -151,6 +151,7 @@ elf_entry:
     pushfq
     andq $~0x40400, (%rsp)
     popfq
+/*  check for abort */
     bt $0,.Laborted(%rip)
     jc .Lreentry_panic
 .endm