scsi: ufs: dt-bindings: renesas,ufs: Add calibration data

On R-Car S4-8 ES1.2, the E-FUSE block contains PLL and AFE tuning
parameters for the Universal Flash Storage controller.  Document the
related NVMEM properties, and update the example.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/2f337169f8183d48b7d94ee13565fea804aade84.1741179611.git.geert+renesas@glider.be


Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>