OpenZFS restructuring - libspl

Factor Linux specific pieces out of libspl.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Sean Eric Fagan <sef@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #9336

cmd/zed/Makefile.am

@@ -1,10 +1,6 @@
-SUBDIRS = zed.d
-
 include $(top_srcdir)/config/Rules.am
 
-DEFAULT_INCLUDES += \
-	-I$(top_srcdir)/include \
-	-I$(top_srcdir)/lib/libspl/include
+SUBDIRS = zed.d
 
 sbin_PROGRAMS = zed
 

cmd/zed/agents/zfs_mod.c

@@ -69,7 +69,6 @@
  */
 
 #include <ctype.h>
-#include <devid.h>
 #include <fcntl.h>
 #include <libnvpair.h>
 #include <libzfs.h>