libbpf-tools: syscall_helpers.c: Fix incorrect syscall name (#5264)

In [1] commit dc24158 ("libbpf-tools: syscount: Add syscall lookup table
for arm64 and riscv"), an incorrect system call name was introduced, probably
because __NR_syscalls was used directly to obtain the name "syscalls", while
in fact it was a count.

Link: dc24158af21e [1]

Signed-off-by: Rong Tao <[email protected]>

Author: Rtoax

libbpf-tools/syscall_helpers.c

@@ -790,7 +790,7 @@ static const char *syscall_names_generic[] = {
 	[438] = "pidfd_getfd",
 	[439] = "faccessat2",
 	[440] = "process_madvise",
-	[441] = "syscalls",
+	[441] = "epoll_pwait2",
 	[442] = "mount_setattr",
 	[443] = "quotactl_fd",
 	[444] = "landlock_create_ruleset",