Implement OSReleaseThreadQuanta

This is mainly used when spinning waiting for the firmware to release a
resource.

Change-Id: I8f5860347e9a21b50fc00de49750bb4f4d7bbba1
diff --git a/services/server/env/fuchsia/osfunc.cc b/services/server/env/fuchsia/osfunc.cc
index 74bbe02..e09f8a0 100644
--- a/services/server/env/fuchsia/osfunc.cc
+++ b/services/server/env/fuchsia/osfunc.cc
@@ -302,7 +302,7 @@
 void
 OSReleaseThreadQuanta(void)
 {
-	NOT_IMPLEMENTED();
+	std::this_thread::yield();
 }
 
 IMG_UINT64