kas: corstone1000: pin the SHAs

Upgrade the Corstone-1000 YMLs as follows:

- Set the layers SHAs
- Align with Kas v4
- Update the layers list

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Signed-off-by: Ross Burton <ross.burton@arm.com>

kas/corstone1000-base.yml

@@ -1,5 +1,5 @@
 header:
-  version: 11
+  version: 14
 
 env:
   DISPLAY: ""
@@ -8,7 +8,7 @@ distro: poky-tiny
 
 defaults:
   repos:
-    refspec: master
+    branch: nanbield
 
 repos:
   meta-arm:
@@ -19,21 +19,22 @@ repos:
 
   poky:
     url: https://git.yoctoproject.org/git/poky
-    refspec: 31dd418207f6c95ef0aad589cd03cd2a4c9a8bf2
+    commit: 2e9c2a2381105f1306bcbcb54816cbc5d8110eff
     layers:
       meta:
       meta-poky:
-      meta-yocto-bsp:
 
   meta-openembedded:
     url: https://git.openembedded.org/meta-openembedded
-    refspec: 5a01ab461c9bcabcbb2298236602373948f8f073
+    commit: 1750c66ae8e4268c472c0b2b94748a59d6ef866d
     layers:
       meta-oe:
       meta-python:
+      meta-perl:
 
   meta-secure-core:
     url: https://github.com/wind-river/meta-secure-core.git
+    commit: e29165a1031dcf601edbed1733cedd64826672a5
     layers:
       meta:
       meta-signing-key:

kas/corstone1000-fvp.yml

@@ -1,5 +1,5 @@
 header:
-  version: 11
+  version: 14
   includes:
     - kas/corstone1000-base.yml
     - kas/fvp-eula.yml

kas/corstone1000-mps3.yml

@@ -1,5 +1,5 @@
 header:
-  version: 11
+  version: 14
   includes:
     - kas/corstone1000-base.yml