Enable evaluate_patches to have a configurable number of patches.

I sort of want to let me machine run a bit longer then 100, and sometimes when testing I just want it to do something small. Having to go edit it each time is annoying. Add the ability to pass a raw argument and use that as the patch limit. Then my crontab can just use that to pass it along.
----
evaluate_patches: Add an option to set a limit of patches to evaluate.

BEGIN_PUBLIC

Change-Id: I6c0348a0d666ac9b285d1ddf26ced2d04a0b04be
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6290725
Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org>
Auto-Submit: Stephen Nusko <nuskos@chromium.org>
Commit-Queue: Stephen Nusko <nuskos@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1424280}

tools/clang/spanify/evaluate_patches.py

@@ -26,6 +26,9 @@ from datetime import datetime
 #   google-api-python-client \
 #   google-auth-httplib2 \
 #   google-auth-oauthlib
+#
+# In addition when invoking evaluate_patches.py you can pass an optional integer
+# argument which will set the limit of patches to evaluate. Default is 100.
 # ```
 
 from google.auth.transport.requests import Request
@@ -225,6 +228,8 @@ run("autoninja -C out/linux", "Failed to build the project.")
 # Create and evaluate patches
 try:
     patch_limit = 100
+    if len(sys.argv) > 1:
+        patch_limit = int(sys.argv[1])
     for patch in patches:
         # Limit the number of patches to evaluate. We don't want to spent too
         # many resources on this.