hikey: Update kernel prebuilt for drm_hwcomposer

Update the 4.9 kernel to enable use of the drm_hwcomposer on the hikey
platform. This is a breaking change and requires an updated userspace.

Includes the following changes:

bbab5cb8a5bd hikey_defconfig: Remove FBDEV_EMULATION support for drm_hwcomposer
487d03e59c3c drm: kirin/kirin960: Remove useless "Scale not support" error message

Bug: 62066689
Change-Id: I6297b6392f43dcef119402d4d995d670c3c83f81
Signed-off-by: Alistair Strachan <astrachan@google.com>
diff --git a/Image.gz-dtb-4.9 b/Image.gz-dtb-4.9
index 0f8f82a..c2afc9a 100644
--- a/Image.gz-dtb-4.9
+++ b/Image.gz-dtb-4.9
Binary files differ