[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/phy/ralink/Kconfig b/src/kernel/linux/v4.14/drivers/phy/ralink/Kconfig
new file mode 100644
index 0000000..b17635b
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/phy/ralink/Kconfig
@@ -0,0 +1,11 @@
+#
+# PHY drivers for Ralink platforms.
+#
+config PHY_RALINK_USB
+	tristate "Ralink USB PHY driver"
+	depends on RALINK || COMPILE_TEST
+	select GENERIC_PHY
+	select MFD_SYSCON
+	help
+	  This option enables support for the Ralink USB PHY found inside
+	  RT3352, MT7620, MT7628 and MT7688.