mb: Fix iOS config after the earlier CL

Followup to https://webrtc-review.googlesource.com/120404

Add forgotten bot ios_arm64_perf.
Drop dcheck_always_on from perf bots like it was before.

Bug: webrtc:10253
Change-Id: I1ab989a6d6059f5ddf6f341e54fcc92cac97755a
Reviewed-on: https://webrtc-review.googlesource.com/c/120804
Commit-Queue: Oleh Prypin <oprypin@webrtc.org>
Reviewed-by: Artem Titarenko <artit@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26506}
diff --git a/tools_webrtc/mb/mb_config.pyl b/tools_webrtc/mb/mb_config.pyl
index 98bee37..d3bfd06 100644
--- a/tools_webrtc/mb/mb_config.pyl
+++ b/tools_webrtc/mb/mb_config.pyl
@@ -137,12 +137,13 @@
     },
     'internal.client.webrtc': {
       'iOS64 Debug': 'ios_internal_debug_bot_arm64',
-      'iOS64 Perf': 'ios_internal_release_bot_arm64',
       'iOS64 Release': 'ios_internal_release_bot_arm64',
+      'iOS64 Perf': 'ios_internal_pure_release_bot_arm64',
     },
     'internal.tryserver.webrtc': {
       'ios_arm64_dbg': 'ios_internal_debug_bot_arm64',
       'ios_arm64_rel': 'ios_internal_release_bot_arm64',
+      'ios_arm64_perf': 'ios_internal_pure_release_bot_arm64',
     },
     'tryserver.webrtc': {
       # iOS
@@ -406,6 +407,9 @@
     'ios_internal_release_bot_arm64': [
       'ios', 'release_bot', 'arm64'
     ],
+    'ios_internal_pure_release_bot_arm64': [
+      'ios', 'pure_release_bot', 'arm64'
+    ],
     'ios_debug_bot_x64': [
       'ios', 'debug_bot', 'x64'
     ],