[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm64/mm/extable.c b/src/kernel/linux/v4.14/arch/arm64/mm/extable.c
new file mode 100644
index 0000000..81e694a
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm64/mm/extable.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Based on arch/arm/mm/extable.c
+ */
+
+#include <linux/extable.h>
+#include <linux/uaccess.h>
+
+int fixup_exception(struct pt_regs *regs)
+{
+	const struct exception_table_entry *fixup;
+
+	fixup = search_exception_tables(instruction_pointer(regs));
+	if (fixup)
+		regs->pc = (unsigned long)&fixup->fixup + fixup->fixup;
+
+	return fixup != NULL;
+}