clk: mvebu: use time_is_before_eq_jiffies() instead of open coding it

Use the helper function time_is_{before,after}_jiffies() to improve
code readability.

Signed-off-by: Wang Qing <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/mvebu/armada-37xx-periph.c

···
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
+#include <linux/jiffies.h>
 
 #define TBG_SEL		0x0
 #define DIV_SEL0	0x4
···
 	 * We are going to L0 with rate >= 1GHz. Check whether we have been at
 	 * L1 for long enough time. If not, go to L1 for 20ms.
 	 */
-	if (pm_cpu->l1_expiration && jiffies >= pm_cpu->l1_expiration)
+	if (pm_cpu->l1_expiration && time_is_before_eq_jiffies(pm_cpu->l1_expiration))
 		goto invalidate_l1_exp;
 
 	regmap_update_bits(base, ARMADA_37XX_NB_CPU_LOAD,