Add missing includes.

Change-Id: I901ecb6471708f4c8ffdc08de9585df3c6188223
diff --git a/camera/QCamera2/stack/mm-jpeg-interface/inc/mm_jpeg_ionbuf.h b/camera/QCamera2/stack/mm-jpeg-interface/inc/mm_jpeg_ionbuf.h
index df05cb4..167bfa6 100644
--- a/camera/QCamera2/stack/mm-jpeg-interface/inc/mm_jpeg_ionbuf.h
+++ b/camera/QCamera2/stack/mm-jpeg-interface/inc/mm_jpeg_ionbuf.h
@@ -32,6 +32,7 @@
 
 
 #include <stdio.h>
+#include <string.h>
 #include <linux/msm_ion.h>
 #include <sys/mman.h>
 #include <unistd.h>
diff --git a/camera/mm-image-codec/qomx_core/qomx_core.h b/camera/mm-image-codec/qomx_core/qomx_core.h
index f59f7cf..c5e792b 100644
--- a/camera/mm-image-codec/qomx_core/qomx_core.h
+++ b/camera/mm-image-codec/qomx_core/qomx_core.h
@@ -29,6 +29,7 @@
 #define QOMX_CORE_H
 
 #include <stdio.h>
+#include <string.h>
 #include <unistd.h>
 #include <malloc.h>
 #include <pthread.h>