patches: Include fcntl.h and sys/ioctl.h in sockets.c

patches: Include fcntl.h and sys/ioctl.h in sockets.c

When using Musl, `fcntl.h` and `sys/ioctl.h` are indirectly included in
`sockets.c` via other header files.

When using nolibc, however, `fcntl.h` and `sys/ioctl.h` are not
included. This commit updates the `sockets.c` patch file to include
`fcntl.h` and `sys/ioctl.h`.

Signed-off-by: Razvan Deaconescu <razvand@unikraft.io>
Reviewed-by: Cezar Craciunoiu <cezar.craciunoiu@unikraft.io>
Approved-by: Marco Schlumpp <marco@unikraft.io>
Tested-by: Unikraft CI <monkey@unikraft.io>
GitHub-Closes: #27