fix(docs): update maintainers list

As part of the release process, revisit the list of maintainers to
keep it updated.

Change-Id: Ifdbbe0d0dd1c8db3e5fbc84affcceb6d3c7716d4
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
diff --git a/docs/about/maintainers.rst b/docs/about/maintainers.rst
index aca5ec0..4531a03 100644
--- a/docs/about/maintainers.rst
+++ b/docs/about/maintainers.rst
@@ -67,6 +67,8 @@
 :|G|: `bytefire`_
 :|M|: Varun Wadekar <vwadekar@nvidia.com>
 :|G|: `vwadekar`_
+:|M|: Yann Gautier <yann.gautier@st.com>
+:|G|: `Yann-lms`_
 
 .. _code owners: