mfd/db5500-prcmu: delete DB5500 PRCMU support

This platform has been obsoleted and was only available inside of
ST-Ericsson, no users of this code are left in the world. This
deletes the core U5500 support entirely in the same manner as the
obsoleted U8500 silicon was previously deleted.

Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Jonas Aberg <jonas.aberg@stericsson.com>
Cc: Per Forlin <per.forlin@stericsson.com>
Cc: Ulf Hansson <ulf.hansson@stericsson.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/mfd/Kconfig

@@ -711,16 +711,6 @@ config MFD_DB8500_PRCMU
 	  system controller running an XP70 microprocessor, which is accessed
 	  through a register map.
 
-config MFD_DB5500_PRCMU
-	bool "ST-Ericsson DB5500 Power Reset Control Management Unit"
-	depends on UX500_SOC_DB5500
-	select MFD_CORE
-	help
-	  Select this option to enable support for the DB5500 Power Reset
-	  and Control Management Unit. This is basically an autonomous
-	  system controller running an XP70 microprocessor, which is accessed
-	  through a register map.
-
 config MFD_CS5535
 	tristate "Support for CS5535 and CS5536 southbridge core functions"
 	select MFD_CORE

drivers/mfd/Makefile

@@ -95,7 +95,6 @@ obj-$(CONFIG_AB8500_GPADC)	+= ab8500-gpadc.o
 obj-$(CONFIG_MFD_DB8500_PRCMU)	+= db8500-prcmu.o
 # ab8500-i2c need to come after db8500-prcmu (which provides the channel)
 obj-$(CONFIG_AB8500_I2C_CORE)	+= ab8500-i2c.o
-obj-$(CONFIG_MFD_DB5500_PRCMU)	+= db5500-prcmu.o
 obj-$(CONFIG_MFD_TIMBERDALE)    += timberdale.o
 obj-$(CONFIG_PMIC_ADP5520)	+= adp5520.o
 obj-$(CONFIG_LPC_SCH)		+= lpc_sch.o