get rid of lkmc package, move userland and kernel-modules to top

Rationale: we already had a non buildroot build system,
maintaining both will be hard, and having short paths is more awesome.

userland/anonymous_inode.c

@@ -0,0 +1,46 @@
+/* https://github.com/cirosantilli/linux-kernel-module-cheat#anonymous-inode */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h> /* sleep */
+
+#include "../include/anonymous_inode.h"
+
+int main(int argc, char **argv)
+{
+	char buf[1024];
+	int fd_ioctl, fd_ioctl_anon, ret;
+	size_t i, nreads;
+
+	if (argc < 2) {
+		puts("Usage: ./prog <ioctl-file> [<nreads>]");
+		return EXIT_FAILURE;
+	} else if (argc > 2) {
+		nreads = strtol(argv[2], NULL, 10);
+	} else {
+		nreads = 3;
+	}
+	fd_ioctl = open(argv[1], O_RDONLY);
+	if (fd_ioctl == -1) {
+		perror("open");
+		return EXIT_FAILURE;
+	}
+	ret = ioctl(fd_ioctl, LKMC_ANONYMOUS_INODE_GET_FD, &fd_ioctl_anon);
+	if (ret == -1) {
+		perror("ioctl");
+		return EXIT_FAILURE;
+	}
+	for (i = 0; i < nreads; ++i) {
+		ret = read(fd_ioctl_anon, buf, sizeof(buf));
+		printf("%.*s\n", ret, buf);
+	}
+	close(fd_ioctl_anon);
+	close(fd_ioctl);
+	return EXIT_SUCCESS;
+}