linux-aspeed: Move to 5.3.8

This includes security and bug fixes from the 5.3.8 stable release.

Change-Id: Ie2765f0e2d4aa4022271446a4310fdc72668931a
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/recipes-kernel/linux/linux-aspeed_git.bb b/recipes-kernel/linux/linux-aspeed_git.bb
index 5922715..d68c8b0 100644
--- a/recipes-kernel/linux/linux-aspeed_git.bb
+++ b/recipes-kernel/linux/linux-aspeed_git.bb
@@ -1,6 +1,6 @@
 KBRANCH ?= "dev-5.3"
-LINUX_VERSION ?= "5.3.7"
+LINUX_VERSION ?= "5.3.8"
 
-SRCREV="96d8c1adf58b85981b08b1e82f2d8b5e47cb0d8d"
+SRCREV="573cba31ce5e6d09f4668311a17ed35f5a66862a"
 
 require linux-aspeed.inc