google-ipmi-sys: srcrev bump b69209b498..b4e3704c17

Willy Tu (5):
      build: Update to c++20 and meson >= 0.57.0
      Add Google Copyright 2021
      test: Replace the C++ MOCK_METHOD<n> macros with the new MOCK_METHOD
      google-ipmi-sys: Refactor to use new version of OEM IPMI Handler
      google-ipmi-sys: Convert input to use std::span<const uint8_t>

Change-Id: I4a4d3416bcc48ca1e4c902969d669a1a4aca6d2f
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>
diff --git a/meta-google/recipes-google/ipmi/google-ipmi-sys_git.bb b/meta-google/recipes-google/ipmi/google-ipmi-sys_git.bb
index 1310f7e..727d57f 100644
--- a/meta-google/recipes-google/ipmi/google-ipmi-sys_git.bb
+++ b/meta-google/recipes-google/ipmi/google-ipmi-sys_git.bb
@@ -19,7 +19,7 @@
 
 S = "${WORKDIR}/git"
 SRC_URI = "git://github.com/openbmc/google-ipmi-sys"
-SRCREV = "b69209b498bf9b1c009c528e40280d13e68f8dbd"
+SRCREV = "b4e3704c17be6a081e3c713b8173edc973bf87d7"
 
 FILES:${PN} += "${libdir}/ipmid-providers"