fb2png: Update/Cleanup headers

* Include relevant headers for all used functions
* Add prototype for fb_dump() to fb.h since used in c-files
* Alphabetize includes

Change-Id: Ifdbaceadb12576b607b654835ae93bc88e2c3268

fb2png/fb.h

@@ -37,6 +37,7 @@ struct fb {
     void* data;
 };
 
+void fb_dump(const struct fb* fb);
 int fb_save_png(const struct fb *fb, const char *path);
 
 #endif

fb2png/fb2png.c

@@ -17,13 +17,15 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/fb.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <fcntl.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
-#include <linux/fb.h>
-#include <errno.h>
+#include <sys/types.h>
+#include <unistd.h>
 
 #include "log.h"
 #include "fb2png.h"

fb2png/log.h

@@ -21,6 +21,7 @@
 #define __KYAN_LOG_H__
 
 #include <errno.h>
+#include <string.h>
 
 #ifdef ANDROID_XXX
 

fb2png/main.c

@@ -17,9 +17,12 @@
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
-#include <stdio.h>
+
 #include <limits.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+
 #include "fb2png.h"
 
 #ifdef ANDROID