BD71815: LDO5 could support fast DVS via GPIO

[M-Vaittinen]

Linux-Kernel-PMIC-Drivers/drivers/regulator/bd7181x-regulator.c

Line 379 in 3e01775

BD7181X_LDO_REG(LDO5, BD7181X_REG_LDO5_VOLT_H,BD7181X_REG_LDO_MODE3,0x40, 800000, 3300000, 50000),

The LDO5 supports fast toggling between two voltage values using GPIO. SW could support this feature.