config: trees: Specific specific architectures for CIP branches

The Civil Infrastructure Platform project only supports specific
architectures for specific branches:

4.4: arm, x86
4.19: arm, arm64, x86
5.10+: arm, arm64, riscv, x86

Update the configuration accordingly.

Signed-off-by: Chris Paterson <[email protected]>

Author: patersonc

config/trees.yaml

@@ -409,29 +409,44 @@ build_configs:
     <<: *chromiumos
     branch: 'chromeos-6.12'
 
-  cip-4.4: &cip
+  cip: &cip
     <<: *base
     tree: cip
+    architectures:
+      - arm
+      - arm64
+      - riscv
+      - x86_64
+
+  cip-4.4: &cip-4-4
+    <<: *cip
     branch: 'linux-4.4.y-cip'
+    architectures:
+      - arm
+      - x86_64
 
   cip-4.4-rt:
-    <<: *cip
+    <<: *cip-4-4
     branch: 'linux-4.4.y-cip-rt'
 
   cip-4.4-st:
-    <<: *cip
+    <<: *cip-4-4
     branch: 'linux-4.4.y-st'
 
-  cip-4.19:
+  cip-4.19: &cip-4-19
     <<: *cip
     branch: 'linux-4.19.y-cip'
+    architectures:
+      - arm
+      - arm64
+      - x86_64
 
   cip-4.19-rt:
-    <<: *cip
+    <<: *cip-4-19
     branch: 'linux-4.19.y-cip-rt'
 
   cip-4.19-st:
-    <<: *cip
+    <<: *cip-4-19
     branch: 'linux-4.19.y-st'
 
   cip-5.10: