Rename libpsa to libpsats

Instead of using a generic name for the library, give it a TS specific
name to avoid possible naming collisions with other psa libraries in
the future.

Change-Id: Icea9be4d836f7d22300b20c8d6a5f8bd8fae1133
Signed-off-by: Gabor Toth <gabor.toth2@arm.com>
diff --git a/docs/project/versioning_policy.rst b/docs/project/versioning_policy.rst
index 0d1352e..c3a5503 100644
--- a/docs/project/versioning_policy.rst
+++ b/docs/project/versioning_policy.rst
@@ -30,7 +30,7 @@
 The project hosts multiple components which can be used separately and thus need
 compatibility information expressed independently. Such components get a
 dedicated version ID. Examples are :ref:`libs-libsp` :ref:`libs-libts` and
-:ref:`libs-libpsa`.
+:ref:`libs-libpsats`.
 
 Components are never released standalone but only part of a TS release. In that
 sense a set of independent component version IDs are assigned to a TS release ID.