hikey: Update 4.19 prebuilt kernel am: 6efd9fcf6e am: 6e328611ee

Original change: https://android-review.googlesource.com/c/device/linaro/hikey-kernel/+/1981326

Change-Id: Ic36c9e33aefa80c1e078f2f342a14e8ee4206a50
diff --git a/hikey/4.19/Image.gz-dtb b/hikey/4.19/Image.gz-dtb
index 9f71865..5afcbf0 100644
--- a/hikey/4.19/Image.gz-dtb
+++ b/hikey/4.19/Image.gz-dtb
Binary files differ