libspark: add missing unistd.h includes for gcc 4.7+

Origin commit data
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Branch: master
Commit: b802566789
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2013-12-26 (Thu, 26 Dec 2013)


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libspark/dmx.cpp

@@ -61,6 +61,7 @@
 #include <poll.h>
 #include <errno.h>
 #include <inttypes.h>
+#include <unistd.h>
 
 #include <cstring>
 #include <cstdio>

libspark/playback_libeplayer3.cpp

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
 #include <audio_lib.h>
 #include <video_lib.h>