clk: return unsigned int in dummy non-OF of_clk_get_parent_count()

In the commit 929e7f3b ("clk: Make of_clk_get_parent_count() return
unsigned ints") of_clk_get_parent_count has been modified to return
unsigned int. There is also a dummy implementation of the same function
for configs without CONFIG_OF. For the consistency it should be updated
as well.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

include/linux/clk-provider.h

@@ -854,7 +854,7 @@ of_clk_hw_onecell_get(struct of_phandle_args *clkspec, void *data)
 {
 	return ERR_PTR(-ENOENT);
 }
-static inline int of_clk_get_parent_count(struct device_node *np)
+static inline unsigned int of_clk_get_parent_count(struct device_node *np)
 {
 	return 0;
 }