ARM: mvebu: remove clock-frequency of serial port Device Tree nodes

Now that the Armada 370/375/38x/XP SoC-level Device Tree files have
the proper "clocks" property in their UART controllers node, it is no
longer useful to have the clock-frequency property defined in the
board-level Device Tree files.

Therefore, this commit gets rid of all the useless 'clock-frequency'
properties.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Link: https://lkml.kernel.org/r/1397806908-7550-5-git-send-email-thomas.petazzoni@free-electrons.comSigned-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/armada-370-db.dts

@@ -35,7 +35,6 @@ soc {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <200000000>;
 				status = "okay";
 			};
 			sata@a0000 {

arch/arm/boot/dts/armada-370-mirabox.dts

@@ -47,7 +47,6 @@ pcie@2,0 {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <200000000>;
 				status = "okay";
 			};
 			timer@20300 {

arch/arm/boot/dts/armada-370-netgear-rn102.dts

@@ -50,7 +50,6 @@ pcie@2,0 {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <200000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-370-netgear-rn104.dts

@@ -50,7 +50,6 @@ pcie@2,0 {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <200000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-370-rd.dts

@@ -51,7 +51,6 @@ pcie@2,0 {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <200000000>;
 				status = "okay";
 			};
 			sata@a0000 {

arch/arm/boot/dts/armada-375-db.dts

@@ -68,7 +68,6 @@ i2c@11100 {
 			};
 
 			serial@12000 {
-				clock-frequency = <200000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-385-db.dts

@@ -55,7 +55,6 @@ i2c@11100 {
 			};
 
 			serial@12000 {
-				clock-frequency = <200000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-385-rd.dts

@@ -51,7 +51,6 @@ i2c@11000 {
 			};
 
 			serial@12000 {
-				clock-frequency = <200000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-xp-axpwifiap.dts

@@ -95,12 +95,10 @@ pmx_phy_int: pmx-phy-int {
 			};
 
 			serial@12000 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 
 			serial@12100 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-xp-db.dts

@@ -106,19 +106,15 @@ pcie@10,0 {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12100 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12200 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12300 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-xp-gp.dts

@@ -104,19 +104,15 @@ pcie@10,0 {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12100 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12200 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12300 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-xp-matrix.dts

@@ -37,19 +37,15 @@ soc {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12100 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12200 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12300 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 

arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts

@@ -72,11 +72,9 @@ pcie@1,0 {
 
 		internal-regs {
 			serial@12000 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			serial@12100 {
-				clock-frequency = <250000000>;
 				status = "okay";
 			};
 			pinctrl {