samples/bpf: tracex4: Fix failed to create kretprobe 'kmem_cache_alloc_node+0x0'

commit 7bd230a26648 ("mm/slab: enable slab allocation tagging for kmalloc
and friends") [1] swap kmem_cache_alloc_node() to
kmem_cache_alloc_node_noprof().

linux/samples/bpf$ sudo ./tracex4
libbpf: prog 'bpf_prog2': failed to create kretprobe
'kmem_cache_alloc_node+0x0' perf event: No such file or directory
ERROR: bpf_program__attach failed

Signed-off-by: Rong Tao <[e-mail]>
Signed-off-by: Andrii Nakryiko <[e-mail]>
Link: https://github.com/torvalds/linux/commit/7bd230a26648ac68ab3731ebbc449090f0ac6a37
Link: https://lore.kernel.org/bpf/[e-mail]

samples/bpf/tracex4.bpf.c

···
 	return 0;
 }
 
-SEC("kretprobe/kmem_cache_alloc_node")
+SEC("kretprobe/kmem_cache_alloc_node_noprof")
 int bpf_prog2(struct pt_regs *ctx)
 {
 	long ptr = PT_REGS_RC(ctx);
 	long ip = 0;
 
-	/* get ip address of kmem_cache_alloc_node() caller */
+	/* get ip address of kmem_cache_alloc_node_noprof() caller */
 	BPF_KRETPROBE_READ_RET_IP(ip, ctx);
 
 	struct pair v = {