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/arch/arm/boot/compressed/debug.S b/arch/arm/boot/compressed/debug.S
index 6bf2917..fac40a7 100644
--- a/arch/arm/boot/compressed/debug.S
+++ b/arch/arm/boot/compressed/debug.S
@@ -8,7 +8,10 @@
 
 ENTRY(putc)
 	addruart r1, r2, r3
-	waituart r3, r1
+#ifdef CONFIG_DEBUG_UART_FLOW_CONTROL
+	waituartcts r3, r1
+#endif
+	waituarttxrdy r3, r1
 	senduart r0, r1
 	busyuart r3, r1
 	mov	 pc, lr