timer: Return count from timer_ops.get_count

No timer drivers return an error from get_count. Instead of possibly
returning an error, just return the count directly.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/timer/mchp-pit64b-timer.c b/drivers/timer/mchp-pit64b-timer.c
index ead8c9b..ad96209 100644
--- a/drivers/timer/mchp-pit64b-timer.c
+++ b/drivers/timer/mchp-pit64b-timer.c
@@ -27,16 +27,14 @@
 	void __iomem *base;
 };
 
-static int mchp_pit64b_get_count(struct udevice *dev, u64 *count)
+static u64 mchp_pit64b_get_count(struct udevice *dev)
 {
 	struct mchp_pit64b_priv *priv = dev_get_priv(dev);
 
 	u32 lsb = readl(priv->base + MCHP_PIT64B_TLSBR);
 	u32 msb = readl(priv->base + MCHP_PIT64B_TMSBR);
 
-	*count = ((u64)msb << 32) | lsb;
-
-	return 0;
+	return ((u64)msb << 32) | lsb;
 }
 
 static int mchp_pit64b_probe(struct udevice *dev)