arm64: dts: qcom: pm660: align thermal node names with bindings

Bindings expect thermal node names to end with '-thermal', so fix pm660
and pm660l:

  sda660-inforce-ifc6560.dtb: thermal-zones: 'pm660', 'pm660l' do not match any of the regexes: '^[a-zA-Z][a-zA-Z0-9\\-]{1,12}-thermal$', 'pinctrl-[0-9]+'

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/20230305154308.241651-1-krzysztof.kozlowski@linaro.org