sdhci_fsl_fdt: Apply errata for LX2160A

LX2160A is affected by two erratum regarding SDHCI. However this board
has generic compat string in DTS for SDHCI which means erratum cannot
be simply applied. Compare compat string from "/" path with LX2160A
compat string when attaching device and apply erratum.

Reviewed by: mmel, imp
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential revision: https://reviews.freebsd.org/D34028