Update EC commit, several bugfixes

Several bugfixes and small feature improvements.

653223750e board/hyperdebug: New flag for controlling I2C STOP condition
1d59513c9e board/hyperdebug: Support long I2C transcripts
63c132ee45 board/hyperdebug: Inline i2c_xfer() function
810b1b5719 board/hyperdebug: Handle cases of I2C interference
f68e8ebe35 board/hyperdebug: Allow controlling drive speed
7358863899 board/hyperdebug: Bugfix to custom JTAG pins
9e38f8fdf6 board/hyperdebug: Better recording of bitbanged pins

third_party/chromium/repos.bzl

@@ -8,7 +8,7 @@ def chromium_repos():
     git_repository(
         name = "ec_src",
         remote = "https://chromium.googlesource.com/chromiumos/platform/ec",
-        commit = "2adaee5e5cf905c0c1cff56e1661e12544d17b58",
+        commit = "fbefdb4114469f9ce2f0f85c1669fd022e6d62eb",
         build_file = "//third_party/chromium:BUILD.ec_src.bazel",
         patches = [
             "//third_party/chromium:ec-custom-version.patch",