Rename Cortex-Deimos to Cortex-A77

Change-Id: I755e4c42242d9a052570fd1132ca3d937acadb13
Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
diff --git a/docs/getting_started/user-guide.rst b/docs/getting_started/user-guide.rst
index 02f8c5f..858996c 100644
--- a/docs/getting_started/user-guide.rst
+++ b/docs/getting_started/user-guide.rst
@@ -1720,8 +1720,8 @@
 -  ``FVP_Base_Cortex-A76x4``
 -  ``FVP_Base_Cortex-A76AEx4``
 -  ``FVP_Base_Cortex-A76AEx8``
+-  ``FVP_Base_Cortex-A77x4`` (Version 11.7 build 36)
 -  ``FVP_Base_Neoverse-N1x4``
--  ``FVP_Base_Deimos``
 -  ``FVP_CSS_SGI-575`` (Version 11.3 build 42)
 -  ``FVP_CSS_SGM-775`` (Version 11.3 build 42)
 -  ``FVP_RD_E1Edge`` (Version 11.3 build 42)