ARM: gemini: delete all boardfiles

Delete the Gemini boardfiles: we have corresponding, fully-featured
device trees for all these boards. Delete the referenced include
files. Delete the local config symbols, especially one for
"swapped memory", as all supported boards have swapped memory, and
would a new board be supported this is likely not the right way
to achieve it anyways. Only the Kconfig options in the central
arch/arm/Kconfig remains.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/Kconfig

@@ -755,8 +755,6 @@ source "arch/arm/mach-ep93xx/Kconfig"
 
 source "arch/arm/mach-footbridge/Kconfig"
 
-source "arch/arm/mach-gemini/Kconfig"
-
 source "arch/arm/mach-highbank/Kconfig"
 
 source "arch/arm/mach-hisi/Kconfig"

arch/arm/mach-gemini/Makefile

@@ -1,13 +1,2 @@
-#
-# Makefile for the linux kernel.
-#
-
-# Object file lists.
-
-obj-y			:= irq.o mm.o time.o devices.o gpio.o idle.o reset.o board-dt.o
-
-# Board-specific support
-obj-$(CONFIG_MACH_NAS4220B)	+= board-nas4220b.o
-obj-$(CONFIG_MACH_RUT100)	+= board-rut1xx.o
-obj-$(CONFIG_MACH_WBD111)	+= board-wbd111.o
-obj-$(CONFIG_MACH_WBD222)	+= board-wbd222.o
+# Makefile for Cortina systems Gemini
+obj-y			:= idle.o board-dt.o

arch/arm/mach-gemini/Makefile.boot

@@ -1,9 +1,3 @@
-ifeq ($(CONFIG_GEMINI_MEM_SWAP),y)
    zreladdr-y	+= 0x00008000
 params_phys-y	:= 0x00000100
 initrd_phys-y	:= 0x00800000
-else
-   zreladdr-y	+= 0x10008000
-params_phys-y	:= 0x10000100
-initrd_phys-y	:= 0x10800000
-endif