clk: Use of_property_present()

Use of_property_present() to test for property presence rather than
of_(find|get)_property(). This is part of a larger effort to remove
callers of of_find_property() and similar functions.
of_(find|get)_property() leak the DT struct property and data pointers
which is a problem for dynamically allocated nodes which may be freed.

Signed-off-by: Rob Herring (Arm) <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Reviewed-by: Linus Walleij <[e-mail]>
Acked-by: Geert Uytterhoeven <[e-mail]> # clk-mstp.c
Reviewed-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/clk.c

···
 		 * clocks.
 		 */
 		np = np->parent;
-		if (np && !of_get_property(np, "clock-ranges", NULL))
+		if (np && !of_property_present(np, "clock-ranges"))
 			break;
 		index = 0;
 	}

drivers/clk/renesas/clk-mstp.c

···
 	for (i = 0; i < MSTP_MAX_CLOCKS; ++i)
 		clks[i] = ERR_PTR(-ENOENT);
 
-	if (of_find_property(np, "clock-indices", &i))
+	if (of_property_present(np, "clock-indices"))
 		idxname = "clock-indices";
 	else
 		idxname = "renesas,clock-indices";

drivers/clk/versatile/clk-sp810.c

···
 	init.parent_names = parent_names;
 	init.num_parents = num;
 
-	deprecated = !of_find_property(node, "assigned-clock-parents", NULL);
+	deprecated = !of_property_present(node, "assigned-clock-parents");
 
 	for (i = 0; i < ARRAY_SIZE(sp810->timerclken); i++) {
 		snprintf(name, sizeof(name), "sp810_%d_%d", instance, i);