arm64: dts: qcom: rename qcs615.dtsi to sm6150.dtsi
The established practice is to have the base DTSI file named after the
base SoC name (see examples of qrb5165-rb5.dts vs sm8250.dtsi,
qrb2210-rb1.dts vs qcm2290.dtsi, qrb4210-rb2.dts vs sm4250.dtsi vs
sm6115.dtsi). Rename the SoC dtsi file accordingly and add "qcom,sm6150"
as a fallback compat string.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250604-qcs615-sm6150-v1-2-2f01fd46c365@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>