ARM: dts: bcm283x: Fix underscores in node names

A lot pinctrl node names, regulators and local_intc do not follow the
node name convention to avoid underscore. So fix this by using hyphen
or a proper node name.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221110173105.6633-2-stefan.wahren@i2se.com


Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>