qemu: update to v5.2.0

cirosantilli · cirosantilli · commit d76f5838f536 · 2021-01-04T00:00:02.000Z
Build was failing on Ubuntu 20.10 with: qemu/docs/qemu-option-trace.rst.inc:4:Malformed option description '[enable=]PATTERN', should look like "opt", "-opt args", "--opt args", "/opt args" or "+opt args" Likely fixed by: https://www.mail-archive.com/qemu-devel@nongnu.org/msg723079.html
diff --git a/submodules/qemu b/submodules/qemu
@@ -1 +1 @@
-Subproject commit d0ed6a69d399ae193959225cdeaa9382746c91cc
+Subproject commit 553032db17440f8de011390e5a1cfddd13751b0b
