refactor(drivers/marvell/comphy-3700): rename Clock Source Low register constants

The register at offset 0x1C3 is called Clock Source Low in functional
specification, but we use constant name GLOB_CLK_SRC_LO. Rename it to
RST_CLK_CTRL instead.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: If7ca460cb166f3828678e1e09c4e6caf5bb77770
diff --git a/drivers/marvell/comphy/phy-comphy-3700.h b/drivers/marvell/comphy/phy-comphy-3700.h
index c8ac8d5..67f2eff 100644
--- a/drivers/marvell/comphy/phy-comphy-3700.h
+++ b/drivers/marvell/comphy/phy-comphy-3700.h
@@ -176,9 +176,8 @@
 #define TEST_MODE_CTRL_ADDR(unit)	(COMPHY_TEST_MODE_CTRL * PHY_SHFT(unit))
 #define MODE_MARGIN_OVERRIDE		BIT(2)
 
-#define COMPHY_GLOB_CLK_SRC_LO		0x1C3
-#define GLOB_CLK_SRC_LO_ADDR(unit)	(COMPHY_GLOB_CLK_SRC_LO * \
-					 PHY_SHFT(unit))
+#define COMPHY_CLK_SRC_LO		0x1C3
+#define CLK_SRC_LO_ADDR(unit)		(COMPHY_CLK_SRC_LO * PHY_SHFT(unit))
 #define MODE_CLK_SRC			BIT(0)
 #define BUNDLE_PERIOD_SEL		BIT(1)
 #define BUNDLE_PERIOD_SCALE		(BIT(2) | BIT(3))