arm64: dts: ti: k3-j721s2-main: Enable support for SDR104 speed mode

According to TRM for J721S2, SDR104 speed mode is supported by the SoC
but its capabilities were masked in device tree. Remove sdhci-caps-mask
to enable support for SDR104 speed mode for SD card in J721S2 SoC.

[+] Refer to : section 12.3.6.1.1 MMCSD Features, in J721S2 TRM
- https://www.ti.com/lit/zip/spruj28

Fixes: b8545f9d ("arm64: dts: ti: Add initial support for J721S2 SoC")
Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20240423151732.3541894-5-jm@ti.comSigned-off-by: Nishanth Menon <nm@ti.com>

arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi

@@ -768,8 +768,6 @@ main_sdhci1: mmc@4fb0000 {
 		ti,clkbuf-sel = <0x7>;
 		ti,trm-icp = <0x8>;
 		dma-coherent;
-		/* Masking support for SDR104 capability */
-		sdhci-caps-mask = <0x00000003 0x00000000>;
 		status = "disabled";
 	};