linux: Add syscall wrapper for getrandom
Import
e20658209177667e490c661dfd35b976749ef3f7 from
git://git.musl-libc.org/musl into patches.
This patch adds a syscall wrapper for getrandom, which
is not supported by musl v1.1.19.
Update the Makefile to compile getrandom() conditionally
to UKSWRAND.
Signed-off-by: Michalis Pappas <michalis.pappas@opensynergy.com>
Reviewed-by: Razvan Virtan <virtanrazvan@gmail.com>
Approved-by: Simon Kuenzer <simon@unikraft.io>
Tested-by: Unikraft CI <monkey@unikraft.io>
GitHub-Closes: #25