Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/misc/ibmasm/r_heartbeat.c b/drivers/misc/ibmasm/r_heartbeat.c
index 6567df6..21c9b6a 100644
--- a/drivers/misc/ibmasm/r_heartbeat.c
+++ b/drivers/misc/ibmasm/r_heartbeat.c
@@ -39,7 +39,7 @@
 	rhb->stopped = 0;
 }
 
-/**
+/*
  * start_reverse_heartbeat
  * Loop forever, sending a reverse heartbeat dot command to the service
  * processor, then sleeping. The loop comes to an end if the service