In Linux we can by default see 2 LEDs - mmc:0, mmc:1 - created in
/sys/class/leds/. This is unexpected for 2 reasons:

1. LX2160A has no mention of mmc led functionality for the pads
2. LX2160A reference manual describes the relevant bit in control
   register as reserved.

Enable SDHCI_QUIRK_NO_LED for LX2160A.