clk: lan966x: remove unused dt-bindings include

In preparation for LAN969x support, all instances referring to defines in
the LAN966x specific header were dropped, so its safe to drop its inclusion
in the driver.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://lore.kernel.org/r/20250924202810.1641883-1-robert.marko@sartura.hr
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

Author: robimarko

drivers/clk/clk-lan966x.c

@@ -16,8 +16,6 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
-#include <dt-bindings/clock/microchip,lan966x.h>
-
 #define GCK_ENA         BIT(0)
 #define GCK_SRC_SEL     GENMASK(9, 8)
 #define GCK_PRESCALER   GENMASK(23, 16)