host-gpios: enable by default

We should tend to have a default meson.option policy that enables as
much code as possible so that it is covered by CI.  The `host-gpios`
option was disabled and we did not have a PACKAGECONFIG for it in
openbmc/openbmc.  With Ia737a5645dcf472efdc75a9af7260eff60ef90ed, I
have added a PACKAGECONFIG for this setting and it will be disabled by
default in our Yocto builds.  Enable it here to regain the CI coverage.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I952095a294059a27ae1066d6abdc9abcc5ba709a
diff --git a/meson.options b/meson.options
index 0c86bcb..aac32dc 100644
--- a/meson.options
+++ b/meson.options
@@ -107,7 +107,7 @@
 )
 
 option('host-gpios', type : 'feature',
-    value : 'disabled',
+    value : 'enabled',
     description : 'Enable gpio mechanism to check host state.',
 )