angler: update prebuilt kernel

fd6a6e0b5c8 devicetree: add early mount nodes in DT to mount system and vendor early
bd01b44cc62 defconfig: enable PROC_DEVICETREE for angler
a59d020cbce ANDROID: sdcardfs: support direct-IO (DIO) operations
7d69c3e88c1 ANDROID: sdcardfs: implement vm_ops->page_mkwrite

Linux version 3.10.73-gfd6a6e0 (android-build@wpds5.hot.corp.google.com)
(gcc version 4.9.x-google 20140827 (prerelease) (GCC) )
 #1 SMP PREEMPT Tue Feb 28 01:51:27 UTC 2017 (master)

Bug: 27805372
Bug: 34133558
Bug: 35803310
Test: Boot tested angler with prebuilt kernel
Change-Id: I3b02ef0fc24f586db256af01c35883d8c0261ff2
Source-Branch: android-msm-angler-3.10
Signed-off-by: Sandeep Patil <sspatil@google.com>