um: start switching the references to host mcontext_t to its userland type

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 995ca30..910499d 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -10,7 +10,7 @@
 #include <sys/time.h>
 #include "kern_util.h"
 #include "os.h"
-#include "process.h"
+#include "internal.h"
 
 int set_interval(void)
 {