meta-facebook: bletchley: create basic machine

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I5801ad2ce5b7e421a62619c57787465bfa585e95
diff --git a/meta-facebook/meta-bletchley/conf/conf-notes.txt b/meta-facebook/meta-bletchley/conf/conf-notes.txt
new file mode 100644
index 0000000..9b3c01a
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+++ b/meta-facebook/meta-bletchley/conf/conf-notes.txt
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+Common targets are:
+     obmc-phosphor-image