arm64: dts: qcom: msm8939-samsung-a7: Drop internal pull for SD CD

A7 seems to have external pull-up for the SD card chip detect (like
most MSM8916/MSM8939 devices) so drop the internal pull-up. It's not
necessary.
Tested-by: "Lin, Meng-Bo" <linmengbo0689@protonmail.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20230723-a7sdc2cdnopull-v1-1-699fd730afcb@gerhold.netSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts

@@ -448,7 +448,7 @@ sdc2_cd_default: sdc2-cd-default-state {
 		pins = "gpio38";
 		function = "gpio";
 		drive-strength = <2>;
-		bias-pull-up;
+		bias-disable;
 	};
 
 	sensor_i2c_default: sensor-i2c-default-state {