CQ: Add ARM64 trybots and rename the 32-bit one.

infra/config/cq.cfg

Index: infra/config/cq.cfg
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index c3f1e34b7e1b010ef04835234af28bca9d7b5062..96a69bc867bea7479f4d98cbfeb04cd55acae913 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -43,6 +43,11 @@ verifiers {
       builders { name: "ios64_sim_ios10_dbg" }
       builders { name: "ios_api_framework" }
       builders { name: "linux32_rel" }
+      # TODO(kjellander): Add when bugs.webrtc.org/7090 is fixed.
+      #builders { name: "linux32_arm_dbg" }
+      builders { name: "linux32_arm_rel" }
+      builders { name: "linux_arm64_dbg" }
+      builders { name: "linux_arm64_rel" }
       builders { name: "linux_asan" }
       builders { name: "linux_baremetal" }
       builders { name: "linux_compile_dbg" }