Fix commit hash for the clang-format changes (esp8266#8525)

GitHub PR rebase-merge of esp8266#8464 introduced a new commit, instead of using
the one from the PR tree. Point to that new one in the `master` branch.
(fixing 24c4152 changes)

Author: mcspr

.git-blame-ignore-revs

@@ -1,4 +1,4 @@
 9bdcd4f36a2e5285267b69b17e8fc26482dc1c72
 eea9999dc5eaf464a432f77d5b65269f9baf198d
 98125f88605cd7e46e9be4e1b3ad0600dd5d2b51
-91213321df5d49622e7d03426da8366197fe0db0
+19b7a29720a6f2c95d06e2ea4baa335dcf32e68f