test: fix boost dependency for bus/aio

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I6d2383398ca3cf8582d64d3a643739b708933c37
diff --git a/meson.build b/meson.build
index 2681be7..c45ea83 100644
--- a/meson.build
+++ b/meson.build
@@ -34,6 +34,12 @@
 subdir('tools')
 
 pthread_dep = dependency('threads')
+boost_dep = dependency(
+    'boost',
+    disabler: true,
+    required: false,
+    modules: [ 'coroutine' ],
+)
 
 subdir('example')
 subdir('test')