hammerhead: update prebuilt kernel

f7e4fbb arm/dt: hammerhead: Set mipi dsi bit clock to 804.67MHz

Bug: 9577044, 9526655
Change-Id: Iba6be18a468fa3e0313b8adf1a58e7339409dc3c
diff --git a/zImage-dtb b/zImage-dtb
index f5dfdfb..2cb890f 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ