linux-aspeed: Move to 5.8.8

This includes security and bug fixes from the 5.8.6, 5.8.7 and 5.8.8
stable releases.

Change-Id: Iab9ce0810e6e5086d284ab966bd356b026a0bf3d
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 2b9f018..19d6ad6 100644
--- a/recipes-kernel/linux/linux-aspeed_git.bb
+++ b/recipes-kernel/linux/linux-aspeed_git.bb
@@ -1,6 +1,6 @@
 KBRANCH ?= "dev-5.8"
-LINUX_VERSION ?= "5.8.5"
+LINUX_VERSION ?= "5.8.8"
 
-SRCREV="c152f081cb5776ae6ab76b0fe7d4ad052f229319"
+SRCREV="7f1f98204e1da8f7bf85add8373751a9e943dd9d"
 
 require linux-aspeed.inc