treewide: use linux/time.h for time conversion defines

Now that we have time conversion defines from in time.h there is no need
for each driver to define their own version.

Signed-off-by: Igor Prusov <ivprusov@salutedevices.com>
Reviewed-by: Svyatoslav Ryhel <clamor95@gmail.com> # tegra
Reviewed-by: Eugen Hristev <eugen.hristev@collabora.com> #at91
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org> #qcom geni
Reviewed-by: Stefan Bosch <stefan_b@posteo.net> #nanopi2
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/drivers/phy/meson-axg-mipi-dphy.c b/drivers/phy/meson-axg-mipi-dphy.c
index cf2a1cd..a69b6c9 100644
--- a/drivers/phy/meson-axg-mipi-dphy.c
+++ b/drivers/phy/meson-axg-mipi-dphy.c
@@ -25,6 +25,7 @@
 #include <linux/bitops.h>
 #include <linux/compat.h>
 #include <linux/bitfield.h>
+#include <linux/time.h>
 
 /* [31] soft reset for the phy.
  *		1: reset. 0: dessert the reset.
@@ -170,8 +171,6 @@
 #define MIPI_DSI_TEST_CTRL0				0x3c
 #define MIPI_DSI_TEST_CTRL1				0x40
 
-#define NSEC_PER_MSEC	1000000L
-
 struct phy_meson_axg_mipi_dphy_priv {
 	struct regmap *regmap;
 #if CONFIG_IS_ENABLED(CLK)