Exclude areas not assigned to Mckernel from direct map of all phys. memory

It's enabled by adding -s to mcreboot.sh.

Cherry-pick of the following commit:

commit b5c13ce51a5a4926c2cf11c817cd0d369ac4402d
Author: Katsuya Horigome <katsuya.horigome.rj@ps.hitachi-solutions.com>
Date:   Mon Nov 20 09:40:41 2017 +0900

    Include measures to prevent memory destruction on Linux side (This is rebase commit for merging to development+hfi)

test/mem_dest_prev/mcexec_test_proc/Makefile

@@ -0,0 +1,7 @@
+OBJS = memtest_destroy
+
+all:$(OBJS)
+
+clean:
+	rm $(OBJS)
+

test/mem_dest_prev/mcexec_test_proc/memtest_destroy.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <sys/syscall.h>
+
+main() {
+	int rst = 0;
+	
+	rst = syscall(950);
+	printf("mem_destroy result:%d\n",rst);
+
+	return;
+}