ARM: gemini: select ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR

This platform survives physical to virtual patching
without any hickups, and can use AUTO_ZRELADDR.
We still need to keep Makefile.boot but it is now empty.

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

@@ -362,6 +362,8 @@ config ARM_SINGLE_ARMV7M
 config ARCH_GEMINI
 	bool "Cortina Systems Gemini"
 	select ARM_APPENDED_DTB # Old Redboot bootloaders deployed
+	select ARM_PATCH_PHYS_VIRT
+	select AUTO_ZRELADDR
 	select CPU_FA526
 	select FARADAY_FTINTC010
 	select FTTMR010_TIMER

arch/arm/mach-gemini/Makefile.boot

-   zreladdr-y	+= 0x00008000
-params_phys-y	:= 0x00000100
-initrd_phys-y	:= 0x00800000
+# Empty on purpose