docs/reference_guide: Update kernel macro name
"error-injection: Separate error-injection from kprobe",
merged in v4.16, changed the name of BPF_ALLOW_ERROR_INJECTION
to just ALLOW_ERROR_INJECTION.
Update the name to help readers grepping the kernel code.
@@ -417,7 +417,7 @@ This is used for targeted error injection.
bpf_override_return will only work when the kprobed function is whitelisted to
allow error injections. Whitelisting entails tagging a function with
-`BPF_ALLOW_ERROR_INJECTION()` in the kernel source tree; see `io_ctl_init` for
+`ALLOW_ERROR_INJECTION()` in the kernel source tree; see `io_ctl_init` for
an example. If the kprobed function is not whitelisted, the bpf program will
fail to attach with ` ioctl(PERF_EVENT_IOC_SET_BPF): Invalid argument`
