ARM: dts: at91: sama7g5ek: increase clock for sdmmc from 25 MHz to 50 MHz

Current clock for sdmmc0 and sdmmc1 is 25 MHz because of the caps forced by
the mainline kernel.
Remove the caps in order to increase the clock to 50 MHz.
This will improve the boot time when reading the kernel binary.
Tested on sama7g5ek rev 5 using mmcinfo command.

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>

Author: Mihai Sain

arch/arm/dts/at91-sama7g5ek.dts

@@ -776,17 +776,13 @@
 &sdmmc0 {
 	bus-width = <8>;
 	non-removable;
-	no-1-8-v;
-	sdhci-caps-mask = <0x0 0x00200000>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc0_default>;
 	status = "okay";
 };
 
 &sdmmc1 {
 	bus-width = <4>;
-	no-1-8-v;
-	sdhci-caps-mask = <0x0 0x00200000>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc1_default>;
 	status = "okay";