Add xyz.openbmc_project.Console.UART

Formalize an ad-hoc interface currently implemented in obmc-console.
This will contain attributes for each console object that is connected
to a physical UART. Other console objects (e.g. VUART) would not
implement this interface. could be extended to support additional
console attributes, but for now a writable `Baud` property is the only
item.

Change-Id: Ib4c9f1e24b4843281c222e882586a0fd44af723b
Signed-off-by: Jonathan Doman <jonathan.doman@intel.com>
diff --git a/gen/xyz/openbmc_project/Console/meson.build b/gen/xyz/openbmc_project/Console/meson.build
index 47f5fad..854b5a4 100644
--- a/gen/xyz/openbmc_project/Console/meson.build
+++ b/gen/xyz/openbmc_project/Console/meson.build
@@ -14,3 +14,18 @@
     ],
 )
 
+subdir('UART')
+generated_others += custom_target(
+    'xyz/openbmc_project/Console/UART__markdown'.underscorify(),
+    input: [ '../../../../yaml/xyz/openbmc_project/Console/UART.interface.yaml',  ],
+    output: [ 'UART.md' ],
+    depend_files: sdbusplusplus_depfiles,
+    command: [
+        sdbuspp_gen_meson_prog, '--command', 'markdown',
+        '--output', meson.current_build_dir(),
+        '--tool', sdbusplusplus_prog,
+        '--directory', meson.current_source_dir() / '../../../../yaml',
+        'xyz/openbmc_project/Console/UART',
+    ],
+)
+