db845c|rb5: Switch to android-6.6 as the default kernel version

Switch db845c-userdebug and linaro_swr-userdebug target
builds to use android-6.6 prebuilt GKI binaries by default.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Change-Id: Ieb169f422f836c1d297d694d9b0c0fa67bbc54c3
diff --git a/db845c/device.mk b/db845c/device.mk
index 6f08e0a..fb1b719 100644
--- a/db845c/device.mk
+++ b/db845c/device.mk
@@ -67,6 +67,6 @@
 $(call inherit-product-if-exists, vendor/linaro/rb5/$(EXPECTED_LINARO_VENDOR_VERSION)/device.mk)
 
 TARGET_HARDWARE := db845c
-TARGET_KERNEL_USE ?= 6.1
+TARGET_KERNEL_USE ?= 6.6
 
 include device/linaro/dragonboard/device-common.mk
diff --git a/linaro_swr/device.mk b/linaro_swr/device.mk
index 5716fa0..829d02a 100644
--- a/linaro_swr/device.mk
+++ b/linaro_swr/device.mk
@@ -67,6 +67,6 @@
 $(call inherit-product-if-exists, vendor/linaro/rb5/$(EXPECTED_LINARO_VENDOR_VERSION)/device.mk)
 
 TARGET_HARDWARE := linaro_swr
-TARGET_KERNEL_USE ?= 6.1
+TARGET_KERNEL_USE ?= 6.6
 
 include device/linaro/dragonboard/device-common.mk