phy: miphy365x: Add MiPHY365x header file for DT x Driver defines

This provides the shared header file which will be reference from both
the MiPHY365x driver and its associated Device Tree node(s).

Cc: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: NMark Rutland <mark.rutland@arm.com>
Acked-by: NAlexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>

include/dt-bindings/phy/phy-miphy365x.h

+/*
+ * This header provides constants for the phy framework
+ * based on the STMicroelectronics MiPHY365x.
+ *
+ * Author: Lee Jones <lee.jones@linaro.org>
+ */
+#ifndef _DT_BINDINGS_PHY_MIPHY
+#define _DT_BINDINGS_PHY_MIPHY
+
+#define MIPHY_TYPE_SATA		1
+#define MIPHY_TYPE_PCIE		2
+#define MIPHY_TYPE_USB		3
+
+#endif /* _DT_BINDINGS_PHY_MIPHY */