db845c/rb5: Switch to android-6.1 as the default kernel version am: 7652f47a76 am: cf31160181 am: a76d8c74ad am: 01fcf3b280

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/2619251

Change-Id: I2917f26fc895d09086e048b465093551c06b79ae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>