ASoC/extcon: arizona: Move arizona jack code to sound/soc/codecs/arizona-jack.c

The jack handling for arizona codecs is being refactored so that it is
done directly by the codec drivers, instead of having an extcon-driver
bind to a separate "arizona-extcon" child-device for this.

drivers/mfd/arizona-core.c has already been updated to no longer
instantiate an "arizona-extcon" child-device for the arizona codecs.

This means that the "arizona-extcon" driver is no longer useful
(there are no longer any devices for it to bind to).

This commit drops the extcon Kconfig / Makefile bits and moves
drivers/extcon/extcon-arizona.c to sound/soc/codecs/arizona-jack.c .

This is a preparation patch for converting the arizona extcon-driver into
a helper library for letting the arizona codec-drivers directly report jack
state through the standard sound/soc/soc-jack.c functions.

Signed-off-by: Hans de Goede <[e-mail]>
Acked-by: Charles Keepax <[e-mail]>
Tested-by: Charles Keepax <[e-mail]>
Acked-by: Chanwoo Choi <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

MAINTAINERS

···
 F:	Documentation/hwmon/wm83??.rst
 F:	arch/arm/mach-s3c/mach-crag6410*
 F:	drivers/clk/clk-wm83*.c
-F:	drivers/extcon/extcon-arizona.c
 F:	drivers/gpio/gpio-*wm*.c
 F:	drivers/gpio/gpio-arizona.c
 F:	drivers/hwmon/wm83??-hwmon.c
···
 F:	include/linux/regulator/arizona*
 F:	include/linux/wm97xx.h
 F:	include/sound/wm????.h
-F:	sound/soc/codecs/arizona.?
+F:	sound/soc/codecs/arizona*
 F:	sound/soc/codecs/cs47l24*
 F:	sound/soc/codecs/wm*
 

drivers/extcon/Kconfig

···
 	help
 	  Say Y here to enable extcon device driver based on ADC values.
 
-config EXTCON_ARIZONA
-	tristate "Wolfson Arizona EXTCON support"
-	depends on MFD_ARIZONA && INPUT && SND_SOC
-	help
-	  Say Y here to enable support for external accessory detection
-	  with Wolfson Arizona devices. These are audio CODECs with
-	  advanced audio accessory detection support.
-
 config EXTCON_AXP288
 	tristate "X-Power AXP288 EXTCON support"
 	depends on MFD_AXP20X && USB_SUPPORT && X86 && ACPI

drivers/extcon/Makefile

···
 obj-$(CONFIG_EXTCON)		+= extcon-core.o
 extcon-core-objs		+= extcon.o devres.o
 obj-$(CONFIG_EXTCON_ADC_JACK)	+= extcon-adc-jack.o
-obj-$(CONFIG_EXTCON_ARIZONA)	+= extcon-arizona.o
 obj-$(CONFIG_EXTCON_AXP288)	+= extcon-axp288.o
 obj-$(CONFIG_EXTCON_FSA9480)	+= extcon-fsa9480.o
 obj-$(CONFIG_EXTCON_GPIO)	+= extcon-gpio.o