drm/msm/dpu: move resource allocation to CRTC

All resource allocation is centered around the LMs. Then other blocks
(except DSCs) are allocated basing on the LMs that was selected, and LM
powers up the CRTC rather than the encoder.

Moreover if at some point the driver supports encoder cloning,
allocating resources from the encoder will be incorrect, as all clones
will have different encoder IDs, while LMs are to be shared by these
encoders.

In addition, move mode_changed() to dpu_crtc as encoder no longer has
access to topology information

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
[quic_abhinavk@quicinc.com: Refactored resource allocation for CDM]
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
[quic_jesszhan@quicinc.com: Changed to grabbing exising global state]
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
[DB: rebased on top of msm-next]
[DB: fixed resource allcoation to ignore the active_changed flag]
Patchwork: https://patchwork.freedesktop.org/patch/637487/
Link: https://lore.kernel.org/r/20250214-concurrent-wb-v6-2-a44c293cf422@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

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