ARM: shmobile: r7s72100: genmai: Remove reference board file

The genmai board now boots using the generic R7S72100 DT machine with
the same feature set as the board file. Remove the board file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
ARM: shmobile: r7s72100: genmai: Remove legacy board file

The genmai board now boots using DT and multiplatform kernel with the
same feature set as the legacy board. Remove the legacy board file and
the board Kconfig option.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
ARM: shmobile: r7s72100: Remove legacy board support

There's no legacy board anymore, genmai now boots with multiplatform
support only. Remove the leftovers.

Makefile.boot portion pointed out by Paul Bolle.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Wolfram Sang <wsa@sang-engineering.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
[horms+renesas@verge.net.au: squashed in patch containing
 Makefile.boot change]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Merge branches 'heads/fixes-for-v3.16', 'heads/defconfig-for-v3.17', 'heads/clock-for-v3.17', 'heads/shdma-for-v3.17' and 'cleanup-boards-for-v3.17' into next