docs: update ubuntu version used
In CI we have moved to jammy docker images based out of ubuntu 22.04,
updating docs to reflect that.
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
Change-Id: I9fc2eeb29ca6d677f640cbe1c4caa09842e12aa4
diff --git a/docs/getting_started/requirements.rst b/docs/getting_started/requirements.rst
index 930a5f9..bea412e 100644
--- a/docs/getting_started/requirements.rst
+++ b/docs/getting_started/requirements.rst
@@ -12,7 +12,7 @@
----------
TF-A Tests may be built using a Linux build host machine with a recent Linux
-distribution. We have performed tests using Ubuntu 20.04 LTS (64-bit), but other
+distribution. We have performed tests using Ubuntu 22.04 LTS (64-bit), but other
distributions should also work fine, provided that the tools and libraries
can be installed.