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/net/phy/swphy.c b/drivers/net/phy/swphy.c
index 53c214a..59f1ba4 100644
--- a/drivers/net/phy/swphy.c
+++ b/drivers/net/phy/swphy.c
@@ -2,7 +2,7 @@
 /*
  * Software PHY emulation
  *
- * Code taken from fixed_phy.c by Russell King <rmk+kernel@arm.linux.org.uk>
+ * Code taken from fixed_phy.c by Russell King.
  *
  * Author: Vitaly Bordug <vbordug@ru.mvista.com>
  *         Anton Vorontsov <avorontsov@ru.mvista.com>