meson: Disable PSABI warning

We rebuild everything together, don't clutter output with compatibility
warnings.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Change-Id: I3786d5a8f3255ceca0c323691d64dd29660eed9b
diff --git a/meson.build b/meson.build
index 48dce71..7e8a3e6 100644
--- a/meson.build
+++ b/meson.build
@@ -12,6 +12,7 @@
 )
 
 add_project_arguments(
+    '-Wno-psabi',
     '-DBOOST_SYSTEM_NO_DEPRECATED',
     '-DBOOST_ERROR_CODE_HEADER_ONLY',
     '-DBOOST_NO_RTTI',