hammerhead: update prebuilt kernel

2c54c39 Sensors: Apply proximity tuning value
8d8fa82 arm/dt: hammerhead: Add proximity tuning value
0ee46d0 mdss: display: Print ratelimited mdss_dsi_isr error message.

Change-Id: Ide36631a0cb976242b52d9e74b3bba4aed0adcc8
diff --git a/zImage-dtb b/zImage-dtb
index 25fcfd3..d889fbd 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ