mfd: da9055: Drop "select PMIC_DA9055"

The Kconfig entry for DA9055 PMIC Support selects PMIC_DA9055. That was
probably inspired by the similar select statement in the entry for
DA9052/53 PMIC with I2C. But the DA9055 PMIC only comes in an I2C
variant and its driver doesn't need a separate Kconfig symbol for shared
code. In any case, this select can be dropped as PMIC_DA9055 doesn't
exist.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/Kconfig

@@ -516,7 +516,6 @@ config MFD_DA9055
 	bool "Dialog Semiconductor DA9055 PMIC Support"
 	select REGMAP_I2C
 	select REGMAP_IRQ
-	select PMIC_DA9055
 	select MFD_CORE
 	depends on I2C=y && GENERIC_HARDIRQS
 	help