arm64: dts: microchip: add LAN969x clock header file

LAN969x uses hardware clock indexes, so document theses in a header to make
them humanly readable.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Link: https://lore.kernel.org/r/20260302112153.464422-4-robert.marko@sartura.hr
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

Author: robimarko

arch/arm64/boot/dts/microchip/clk-lan9691.h

@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: (GPL-2.0-or-later OR MIT) */
+
+#ifndef _DTS_CLK_LAN9691_H
+#define _DTS_CLK_LAN9691_H
+
+#define GCK_ID_QSPI0		0
+#define GCK_ID_QSPI2		1
+#define GCK_ID_SDMMC0		2
+#define GCK_ID_SDMMC1		3
+#define GCK_ID_MCAN0		4
+#define GCK_ID_MCAN1		5
+#define GCK_ID_FLEXCOM0		6
+#define GCK_ID_FLEXCOM1		7
+#define GCK_ID_FLEXCOM2		8
+#define GCK_ID_FLEXCOM3		9
+#define GCK_ID_TIMER		10
+#define GCK_ID_USB_REFCLK	11
+
+/* Gate clocks */
+#define GCK_GATE_USB_DRD	12
+#define GCK_GATE_MCRAMC		13
+#define GCK_GATE_HMATRIX	14
+
+#endif