meta-facebook: obmc-console: Fix client config escape sequence

    Add single quotes around the escape sequence.

    - The <CTRL-L>x sequence was not properly registered when parsing the config files
    - Typing just 'x' was enough to exit the console
    - The issue was traced to the iniparser library used in obmc-console
    - The library was stripping control characters unless single-quoted

    Tested on LFDarwin & Yosemite4:
    ```
    obmc-console-client -c /etc/obmc-console/client.conf -i host1
    <Pressing just 'x' has no effect>
    <Having to press the whole sequence <CTRL-L>x to exit>

Change-Id: I0bf70595c9c7838a5ea00b193259a92a9e784412
Signed-off-by: Robert Ercean Dima <robert3@meta.com>

meta-facebook/recipes-phosphor/console/obmc-console/client.conf

diff --git a/meta-facebook/recipes-phosphor/console/obmc-console/client.conf b/meta-facebook/recipes-phosphor/console/obmc-console/client.conf
index d84c004..60330a3 100644
--- a/meta-facebook/recipes-phosphor/console/obmc-console/client.conf
+++ b/meta-facebook/recipes-phosphor/console/obmc-console/client.conf
@@ -1,3 +1,3 @@
 # Specify the escape sequence <Ctrl+L>x which is usable by
-# existing FB tooling.
-escape-sequence =  x
+# existing FB tooling
+escape-sequence =  'x'