mfd: tps6586x: Fix up define for TPS6586X_MAX_REGISTER
mfd: tps6586x: Fix up define for TPS6586X_MAX_REGISTER

The latest valid register is TPS6586X_VERSIONCRC.

Signed-off-by: Axel Lin <b6ffd6973e972cb999e8e535ab74da7fee0c035f@ingics.com>
Signed-off-by: Lee Jones <630e34333487a351a857f6b705e04d30b37c1629@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs