Update XLA dependency to use revision

http://github.com/openxla/xla/commit/df971129bd82e381954da0185b534220e21798a4.

PiperOrigin-RevId: 738213047

Author: Google-ML-Automation

third_party/xla/workspace.bzl

@@ -21,8 +21,8 @@ load("//third_party:repo.bzl", "tf_http_archive", "tf_mirror_urls")
 #    curl -L https://github.com/openxla/xla/archive/<git hash>.tar.gz | sha256sum
 #    and update XLA_SHA256 with the result.
 
-XLA_COMMIT = "3bb765472122548cc227b8bd2990f00bd533f438"
-XLA_SHA256 = "72126aac7602153aee985ca20f73d11c39e3ba9cfb8027492951e787559d0497"
+XLA_COMMIT = "df971129bd82e381954da0185b534220e21798a4"
+XLA_SHA256 = "11e9a568320cf7e7d61819620fd369927527ecefb68d5d1154b1521456bbdb72"
 
 def repo():
     tf_http_archive(