hikey-kernel: Update kernel prebuilt to Image-dtb (6d9a0bc)
am: 6c65550bed

* commit '6c65550bed37e9ac06885dbcf3c5e545ae0f0651':
  hikey-kernel: Update kernel prebuilt to Image-dtb (6d9a0bc)

Change-Id: I4475f51a97a1d4cbfe326728dbff3c2d5edbfde7