kernel: 4.17.4 stable release

Change-Id: I0b513d04722b0709494d6f4768cc309784d46bfa
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 caa8c7d..8a16ca3 100644
--- a/recipes-kernel/linux/linux-aspeed_git.bb
+++ b/recipes-kernel/linux/linux-aspeed_git.bb
@@ -1,6 +1,6 @@
 KBRANCH ?= "dev-4.17"
-LINUX_VERSION ?= "4.17.3"
+LINUX_VERSION ?= "4.17.4"
 
-SRCREV="a632e6a191c15aee354db63bafc39480e23e3073"
+SRCREV="8fb9a0714f8ff91756a9746707c4f884b3745a40"
 
 require linux-aspeed.inc