ARM: s3c24xx: stop including mach/hardware.h from mach/io.h

A number of other files rely on mach/map.h to be indirectly
included from mach/io.h through mach/hardware.h.

Reduce this to the minimal plat/map-base.h and add explicit
includes everywhere else.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-38-krzk@kernel.org


Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>