sys/random.h: add GRND_INSECURE from linux v5.6
tree4bce1b996910d00669979d62a9a97b67088d528d
-rw-r--r-- 61 .gitignore
-rw-r--r-- 54 .mailmap
-rw-r--r-- 6204 COPYRIGHT
-rw-r--r-- 6742 INSTALL
-rw-r--r-- 7515 Makefile
-rw-r--r-- 1028 README
-rw-r--r-- 6 VERSION
-rw-r--r-- 86797 WHATSNEW
drwxr-xr-x - arch
drwxr-xr-x - compat
-rwxr-xr-x 25359 configure
drwxr-xr-x - crt
drwxr-xr-x - dist
-rw-r--r-- 411 dynamic.list
drwxr-xr-x - include
drwxr-xr-x - ldso
drwxr-xr-x - src
drwxr-xr-x - tools