drivers: Remove legacy nanokernel.h include

This commit replaces the nanokernel.h include by kernel.h.

Change-Id: Ib42fbf2d9f77a73c0831f569b3dbbfb342ea2e1d
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
diff --git a/drivers/interrupt_controller/loapic_intr.c b/drivers/interrupt_controller/loapic_intr.c
index 2d552a0..7830fc4 100644
--- a/drivers/interrupt_controller/loapic_intr.c
+++ b/drivers/interrupt_controller/loapic_intr.c
@@ -87,7 +87,7 @@
  * INCLUDE FILES: loapic.h
  */
 
-#include <nanokernel.h>
+#include <kernel.h>
 #include <arch/cpu.h>
 #include <stdint.h>
 #include <string.h>