meson: rename options file

Meson supports the options being in a `meson.options` instead of a
generic text file so leverage this option. Use of `meson.options`
requires at least meson v1.1.0, but that in turn yields an issue with
the options file:

```
meson.options:2: WARNING: Project targets '>=1.1.0' but uses feature deprecated since '1.1.0': "boolean option" keyword argument "value" of type str. use a boolean, not a string
```

Fix all of these issues together.

Change-Id: Idebe8f5ccd2d7ba2dbb0a45a274deac0c1fd327d
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meson.options b/meson.options
new file mode 100644
index 0000000..d8837f2
--- /dev/null
+++ b/meson.options
@@ -0,0 +1,4 @@
+option('udev', type: 'feature', description: 'Install console udev rules')
+option('concurrent-servers', type: 'boolean', value: false, description: 'Support multiple concurrent obmc-console instances')
+option('ssh', type: 'feature', description: 'Support obmc-console-ssh and obmc-console-ssh-socket')
+option('tests', type: 'boolean', description: 'Enable the test suite')