arm64: dts: qcom: sc7180-trogdor: use generic node names

According to Devicetree specification, the node names should be somewhat
generic.  Use "amplifier" for max98360a and "-regulator" for fixed
regulators.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221203161443.97656-1-krzysztof.kozlowski@linaro.org