bpf: expose bpf_strtol and bpf_strtoul to all program types

mainline inclusion
from mainline-v6.1-rc1
commit 8a67f2de
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I932VT
CVE: CVE-2023-52452

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8a67f2de9b1d



--------------------------------

bpf_strncmp is already exposed everywhere. The motivation is to keep
those helpers in kernel/bpf/helpers.c. Otherwise it's tempting to move
them under kernel/bpf/cgroup.c because they are currently only used
by sysctl prog types.

Suggested-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20220823222555.523590-4-sdf@google.com


Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Pu Lehui <pulehui@huawei.com>