flounder: update kernel prebuilt

c6b913f FROMLIST: bcmdhd: Validate event packet size

Bug: 25668862
Change-Id: I8fa81f3c768327b42ec2912e2c98c42cdfc70010
diff --git a/Image.gz-dtb b/Image.gz-dtb
index 68c761a..55a4bf8 100644
--- a/Image.gz-dtb
+++ b/Image.gz-dtb
Binary files differ