meson: convert replay directory to Meson

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/meson.build b/meson.build
index 4ff3f7b..60313b2 100644
--- a/meson.build
+++ b/meson.build
@@ -656,6 +656,7 @@
 
 subdir('softmmu')
 subdir('monitor')
+subdir('replay')
 
 # needed for fuzzing binaries
 subdir('tests/qtest/libqos')