qcacmn: Prepend kernel includes with "kernel/"

To avoid include conflicts, prepend all kernel includes with "kernel/"

Change-Id: I1c3ae9078d5537b03486afff9c2491881c9f694c
CRs-Fixed: 2098814
diff --git a/hif/src/hif_irq_affinity.c b/hif/src/hif_irq_affinity.c
index 92e8859..2f8b611 100644
--- a/hif/src/hif_irq_affinity.c
+++ b/hif/src/hif_irq_affinity.c
@@ -23,7 +23,7 @@
  * an abstraction layer...  Should this be moved into a /linux folder?
  */
 
-#include <string.h> /* memset */
+#include <linux/string.h> /* memset */
 
 /* Linux headers */
 #include <linux/cpumask.h>