hammerhead: update prebuilt kernel

ba8ba4a  ASoC: msm: extend proxy port period count and size range
4304a20  USB: gadget: f_mtp: Fix integer overflow when transferring large files
268c5c0  net: wireless: bcmdhd: Reduced link stats verbosity to avoid kmsg spam
2b9dc8f  cpufreq: prevents NULL pointer reference while all_time_in_state stats is collected.

Change-Id: Ica64a7de816296c289c376539bc1980446a0fe7b
diff --git a/zImage-dtb b/zImage-dtb
index 4c197d2..c5ae673 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ