Revert "std.Thread: disable test on armeb in addition to thumbeb"

This reverts commit a73f246.

Author: alexrp

lib/std/Thread.zig

@@ -1661,11 +1661,6 @@ test "Thread.getCurrentId" {
 test "thread local storage" {
     if (builtin.single_threaded) return error.SkipZigTest;
 
-    if (builtin.cpu.arch == .armeb or builtin.cpu.arch == .thumbeb) {
-        // https://github.com/ziglang/zig/issues/24061
-        return error.SkipZigTest;
-    }
-
     const thread1 = try Thread.spawn(.{}, testTls, .{});
     const thread2 = try Thread.spawn(.{}, testTls, .{});
     try testTls();