[route/test_route_perf] Get l3_alpm_template from config.bcm for all TH5 platform (#20202)

What is the motivation for this PR?
To fix the route.test_route_perf case on Moby.

How did you do it?
Change the condition to include Moby platform so we can get l3_alpm_template from config.bcm.

How did you verify/test it?
Manually run route.test_route_perf case on a Moby platform and case can pass.

Signed-off-by: zitingguo-ms <[email protected]>

Author: Gfrom2016

tests/route/test_route_perf.py

@@ -107,7 +107,7 @@ def check_config(duthosts, enum_rand_one_per_hwsku_frontend_hostname, enum_rand_
     asic_id = enum_rand_one_frontend_asic_index
 
     if (asic == "broadcom"):
-        if "7060x6_64pe" in platform:
+        if "x86_64-arista_7060x6" in platform:
             # For all TH5 family devices, l3_alpm_template is set in config.bcm
             # * 1 - Combined (By default)
             # * 2 - Parallel