ARM: dts: exynos: Fix regulator node aliasing on Midas-based boards

ARM: dts: exynos: Fix regulator node aliasing on Midas-based boards

Commit ab2d5710e3eb ("ARM: dts: exynos: Add support for the
touch-sensitive buttons on Midas family") added a new fixed regulator
("voltage-regulator-6") to base "midas" .dtsi, but it didn't update the
clients of that .dtsi, which define their own fixed regulators starting
from the "voltage-regulator-6". This results in aliasing of the regulator
dt nodes and breaks operation of OLED panel due to lack of power supply.
Fix this by increasing the numbers in the fixed regulator names for those
boards.

Link: https://lore.kernel.org/r/20200316173710.3144-1-krzk@kernel.org
Fixes: ab2d5710e3eb ("ARM: dts: exynos: Add support for the touch-sensitive buttons on Midas family")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>