Skip test_lag_hash and test_ecmp_hash on Cisco platform

Current hash logic can not support lag only and ecmp only hash

Signed-off-by: Kevin Wang <shengkaiwang@microsoft.com>

Author: kevinskwang

tests/common/plugins/conditional_mark/tests_mark_conditions.yaml

@@ -1150,7 +1150,7 @@ hash/test_generic_hash.py::test_ecmp_hash:
   skip:
     reason: 'ECMP hash not supported in broadcom SAI'
     conditions:
-      - "asic_type in ['broadcom']"
+      - "asic_type in ['broadcom', 'cisco-8000']"
 
 hash/test_generic_hash.py::test_ecmp_hash[CRC-INNER_IP_PROTOCOL:
   skip:
@@ -1169,7 +1169,7 @@ hash/test_generic_hash.py::test_lag_hash:
   skip:
     reason: 'LAG hash not supported in broadcom SAI'
     conditions:
-      - "asic_type in ['broadcom']"
+      - "asic_type in ['broadcom', 'cisco-8000']"
 
 hash/test_generic_hash.py::test_lag_hash[CRC-INNER_IP_PROTOCOL:
   skip: