libzpool: separate driver-side include

Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #17861

lib/libzpool/kernel.c

@@ -45,6 +45,9 @@
 #include <sys/time.h>
 #include <sys/tsd.h>
 #include <sys/utsname.h>
+
+#include <libspl.h>
+#include <libzpool.h>
 #include <sys/zfs_context.h>
 #include <sys/zfs_onexit.h>
 #include <sys/zfs_vfsops.h>

lib/libzpool/util.c

@@ -38,6 +38,7 @@
 #include <sys/zfs_ioctl.h>
 #include <sys/tunables.h>
 #include <libzutil.h>
+#include <libzpool.h>
 
 /*
  * Routines needed by more than one client of libzpool.