usb: dwc3: qcom: Replace <linux/clk-provider.h> by <linux/of_clk.h>

The DWC3 USB driver is not a clock provider, and just needs to call
of_clk_get_parent_count().

Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200212101853.9349-1-geert+renesas@glider.beSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/dwc3/dwc3-qcom.c

@@ -9,7 +9,7 @@
 #include <linux/of.h>
 #include <linux/clk.h>
 #include <linux/irq.h>
-#include <linux/clk-provider.h>
+#include <linux/of_clk.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/extcon.h>