Use SDL's thread wrappers instead of pthreads to increase portability in the SDL sim.  Patch by Andrew Pilley with some changes by me.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8347 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index f388d14..78be75b 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -158,3 +158,4 @@
 Martin Scarratt
 Karl Kurbjun
 Tomasz Malesinski
+Andrew Pilley