hammerhead: update prebuilt kernel

d304f1d fix false disconnect due to a signal sent to the reading process
fa8bd09 net: wireless: bcmdhd: support Hotspot 2.0 release 1.0

Bug: 12765000
Bug: 11883933
Change-Id: Iedbe472fc96d098be577a378ed9baa913c8448b2
diff --git a/vmlinux.bz2 b/vmlinux.bz2
index 87a9e59..6d481c6 100644
--- a/vmlinux.bz2
+++ b/vmlinux.bz2
Binary files differ
diff --git a/zImage-dtb b/zImage-dtb
index 6ac8d82..ec7a143 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ