update kernel to 4.12.4

support new p9 trans xen.

Signed-off-by: Gao feng <omarapazanadi@gmail.com>

Author: gao-feng

build/Dockerfile

@@ -3,7 +3,7 @@ MAINTAINER Hyper Developers <dev@hyper.sh>
 
 RUN yum install -y patch gcc ncurses-devel make openssl-devel bc perl
 
-ENV KERNEL_VERSION 4.9.23
+ENV KERNEL_VERSION 4.12.4
 ENV LOCALVERSION -hyper
 ENV KERNEL_RELEASE ${KERNEL_VERSION}${LOCALVERSION}