linux(4): Cleanup vm includes from linux_util.h

Include vm headers directly where they needed. The linux_util.h included
in a most source files of the Linuxulator, avoid collecting a rarely used
includes here.

MFC after:		2 weeks

sys/amd64/linux/linux_machdep.c

@@ -74,6 +74,7 @@ __FBSDID("$FreeBSD$");
 
 #include <vm/pmap.h>
 #include <vm/vm.h>
+#include <vm/vm_param.h>
 #include <vm/vm_extern.h>
 #include <vm/vm_kern.h>
 #include <vm/vm_map.h>

sys/arm64/linux/linux_machdep.c

@@ -39,6 +39,8 @@ __FBSDID("$FreeBSD$");
 #include <sys/reg.h>
 #include <sys/sdt.h>
 
+#include <vm/vm_param.h>
+
 #include <arm64/linux/linux.h>
 #include <arm64/linux/linux_proto.h>
 #include <compat/linux/linux_dtrace.h>

sys/compat/linux/linux_misc.c

@@ -80,6 +80,7 @@ __FBSDID("$FreeBSD$");
 #include <vm/pmap.h>
 #include <vm/vm_kern.h>
 #include <vm/vm_map.h>
+#include <vm/vm_param.h>
 #include <vm/vm_extern.h>
 #include <vm/swap_pager.h>
 

sys/compat/linux/linux_util.h

@@ -36,8 +36,6 @@
 #ifndef	_LINUX_UTIL_H_
 #define	_LINUX_UTIL_H_
 
-#include <vm/vm.h>
-#include <vm/vm_param.h>
 #include <sys/sysent.h>
 #include <sys/uio.h>