hammerhead: Update prebuilt kernel

efdedc7 arm/dt: hammerhead: power: Adjust the battery TA charging current

Change-Id: I2d5908c52be7b68d1fda6aa994b80f824563755c
diff --git a/kernel b/kernel
index e949f9b..44a57f1 100644
--- a/kernel
+++ b/kernel
Binary files differ