gbmcweb: SRCREV bump f4b47e2384..3bff1b274b

gBMC Team (2):
      Introduce ResourceEntity::kGoogleVoltageRegulator and ResourceEntity::kGoogleVoltageRegulatorCollection in Ecclesia Redfish authorization enums.
      Disable cached PWM writes in tlBMC Thermal Control

Fusion-Link: fusion2 N/A
Platforms-Affected: platform25
Tested: N/A
Google-Bug-Id: 545704112
Google-Bug-Id: 515569955
Change-Id: I67d837b142392cace776fe859d7019da208e1b19
Signed-off-by: James Zheng <alphetis@google.com>

recipes-phosphor/interfaces/gbmcweb.inc

diff --git a/recipes-phosphor/interfaces/gbmcweb.inc b/recipes-phosphor/interfaces/gbmcweb.inc
index 05fab9e..232cb48 100644
--- a/recipes-phosphor/interfaces/gbmcweb.inc
+++ b/recipes-phosphor/interfaces/gbmcweb.inc
@@ -1,2 +1,2 @@
 GBMCWEB_SRC_URI = "git://gbmc.googlesource.com/gbmcweb;branch=gbmc-release-26.37.x;protocol=https"
-GBMCWEB_SRCREV = "f4b47e2384215b7db052ace403d469afec883eb8"
+GBMCWEB_SRCREV = "3bff1b274b000ec30b343b6f8022b3882b1598ee"
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