android: jpeg: exif: Use reentrant localtime_r()

The std::localtime() function isn't thread-safe, and we have no
guarantee whether other threads in the camera service may or may not
call it. Replace it with localtime_r(). This requires switching from
ctime to time.h, as there is no std::localtime_r() function.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <email@uajain.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

src/android/jpeg/exif.h

@@ -7,8 +7,8 @@
 #ifndef __ANDROID_JPEG_EXIF_H__
 #define __ANDROID_JPEG_EXIF_H__
 
-#include <ctime>
 #include <string>
+#include <time.h>
 
 #include <libexif/exif-data.h>