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drm_hwcomposer: HWC3: Fix hotplug handling

Roman Stratiienko requested to merge roman.stratiienko/drm-hwcomposer:fix-hotplug-hwc3 into main

The second or any subsequent hotplug event with connected status enabled is a special way to inform the client (SF) that the display has changed its dimensions. In this case, the client removes all layers and re-creates them. In this case, we keep the display resources.

This avoids logcat messages during plug/unplug the primary display:

E HwcComposer: destroyLayer failed Status(-8, EX_SERVICE_SPECIFIC): '3: '
E HWC2    : destroyLayer(0, 3) failed: BadLayer (3)

Change-Id: I24b110a0b474cd56de0d51b83b0fb44d79d3fccd Signed-off-by: Roman Stratiienko r.stratiienko@gmail.com

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