Revert "objtool: Exclude __tracepoints data from ENDBR checks"

JIRA: https://issues.redhat.com/browse/RHEL-87959

Upstream Status: RHEL-only

This reverts commit d5ae766.

When tracepoints are enabled, tracepoint_add_func() does an indirect call
to syscall_regfunc(). Since tracepoint data is excluded from ENDBR
checks, syscall_regfunc() is missing an ENDBR instruction
which causes Intel CET/IBT to throw a control protection exemption.
Therefore, revert commit d5ae766 to ensure the ENDBR instruction is
included.

Signed-off-by: Anubhav Shelat <ashelat@redhat.com>

Author: AnubhavS1

tools/objtool/check.c

@@ -4578,7 +4578,6 @@ static int validate_ibt(struct objtool_file *file)
 		    !strcmp(sec->name, ".kcfi_traps")			||
 		    !strcmp(sec->name, ".llvm.call-graph-profile")	||
 		    !strcmp(sec->name, ".llvm_bb_addr_map")		||
-		    !strcmp(sec->name, "__tracepoints")			||
 		    strstr(sec->name, "__patchable_function_entries"))
 			continue;