rild: use correct header file.

Change-Id: I1e969b36f19671f0502c8f952633b6c98e8f527d
diff --git a/rild/rild.c b/rild/rild.c
index 9e57e89..70530c6 100644
--- a/rild/rild.c
+++ b/rild/rild.c
@@ -29,7 +29,7 @@
 #include <utils/Log.h>
 #include <cutils/properties.h>
 #include <cutils/sockets.h>
-#include <linux/capability.h>
+#include <sys/capability.h>
 #include <linux/prctl.h>
 
 #include <private/android_filesystem_config.h>