[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/powerpc/boot/motload-head.S b/src/kernel/linux/v4.14/arch/powerpc/boot/motload-head.S
new file mode 100644
index 0000000..826dad0
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/powerpc/boot/motload-head.S
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include "ppc_asm.h"
+
+	.text
+	.globl _zimage_start
+_zimage_start:
+	mfmsr   r10
+	rlwinm  r10,r10,0,~(1<<15)        /* Clear MSR_EE */
+	sync
+	mtmsr   r10
+	isync
+	b	_zimage_start_lib