linux-aspeed: Move to v5.15.69 stable release

This includes security and bug fixes from the 5.15.68 and
5.15.69 stable releases.

Change-Id: Ie421be7ade33e2f887aff0432dcb44d6f6f63cbe
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/meta-aspeed/recipes-kernel/linux/linux-aspeed_git.bb b/meta-aspeed/recipes-kernel/linux/linux-aspeed_git.bb
index bd85ce2..29b307e 100644
--- a/meta-aspeed/recipes-kernel/linux/linux-aspeed_git.bb
+++ b/meta-aspeed/recipes-kernel/linux/linux-aspeed_git.bb
@@ -1,6 +1,6 @@
 KBRANCH ?= "dev-5.15"
-LINUX_VERSION ?= "5.15.67"
+LINUX_VERSION ?= "5.15.69"
 
-SRCREV="d7c6326415c4dedcdf4b39dc1867866aeb993ed3"
+SRCREV="8a1970a8848d7de92f731f14ca48d3bb50650684"
 
 require linux-aspeed.inc