KEYS: Include linux/errno.h in linux/verification.h

JIRA: https://issues.redhat.com/browse/RHEL-81929

commit 0a596b0
Author: Herbert Xu <herbert@gondor.apana.org.au>
Date:   Sat Aug 26 16:36:41 2023 +0800

    KEYS: Include linux/errno.h in linux/verification.h

    Add inclusion of linux/errno.h as otherwise the reference to EINVAL
    may be invalid.

    Fixes: f3cf413 ("bpf: Add bpf_lookup_*_key() and bpf_key_put() kfuncs")
    Reported-by: kernel test robot <lkp@intel.com>
    Closes: https://lore.kernel.org/oe-kbuild-all/202308261414.HKw1Mrip-lkp@intel.com/
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Herbert Xu <herbert.xu@redhat.com>

Author: Herbert Xu

include/linux/verification.h

@@ -8,6 +8,7 @@
 #ifndef _LINUX_VERIFICATION_H
 #define _LINUX_VERIFICATION_H
 
+#include <linux/errno.h>
 #include <linux/types.h>
 
 /*