Revert^2 "kernel: SRCREV bump 15e3ed4..dd52df9"

This reverts commit c49878375af52d6c38de58b7569fbda48b28edf1.

Reason for revert: b/547880205, this change isn't the root cause of this bug. Recover this change.

Tested: recover change.
Fusion-Link: fusion2 N/A
Google-Bug-Id: 547880205
Change-Id: I2178793046a225455b48a24a4f85d09c96486a8c

recipes-kernel/linux/linux-gbmc_aspeedg7.bb

diff --git a/recipes-kernel/linux/linux-gbmc_aspeedg7.bb b/recipes-kernel/linux/linux-gbmc_aspeedg7.bb
index cc1f771..31c691b 100644
--- a/recipes-kernel/linux/linux-gbmc_aspeedg7.bb
+++ b/recipes-kernel/linux/linux-gbmc_aspeedg7.bb
@@ -8,7 +8,7 @@
 LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46"
 
 SRC_URI:prepend = "git://gbmc.googlesource.com/linux;protocol=https;branch=${KBRANCH}"
-SRCREV = "15e3ed4c88b72f3042f1a5a4ec2214bef1d20a59"
+SRCREV = "dd52df9f7a7b66673b99e3840d2d02b6026ab851"
 
 SRC_URI:append:aspeed-g7 = " \
   file://aspeed-g7-gbmc.cfg \