arm64: dts: qcom: qcs6490-audioreach: Add AudioReach support for QCS6490

arm64: dts: qcom: qcs6490-audioreach: Add AudioReach support for QCS6490

Introduce qcs6490-audioreach.dtsi to support AudioReach architecture on
QCS6490 platforms. The existing ADSP Bypass DTSI files such as sc7280.dtsi,
which is tailored for ADSP Bypass architecture as they lack DSP-specific
nodes required for AudioReach. The new qcs6490-audioreach.dtsi file defines
nodes for AudioReach specific components such as APM (Audio Process
Manager), PRM (Proxy Resource Manager), and GPR (Generic Packet Router).
This change enable the audio from the legacy ADSP Bypass solution to
the AudioReach framework.

Co-developed-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Prasad Kumpatla <quic_pkumpatl@quicinc.com>
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250903151337.1037246-3-mohammad.rafi.shaik@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>