kernel: Move to 4.17.7 stable release

This bumps the openbmc kernel to the latest stable release.

Change-Id: I32b8c55c8a0759cc2b732dd7803171423a7e5b3c
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 a8b3f3d..a0840ce 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 ?= "4.17.4"
+LINUX_VERSION ?= "4.17.7"
 
-SRCREV="5968d6cf37d26fc8ea7c29305b0757cc1331e717"
+SRCREV="d0c45cd44a8f105ca72a4ea039131d04543bed8d"
 
 require linux-aspeed.inc