drm/xe/guc: Introduce GuC context ID Manager

While we are already managing GuC IDs directly in GuC submission
code, using bitmap() for MLRC and ida() for SLRC, this code can't
be easily extended to meet additional requirements for SR-IOV use
cases, like limited number of IDs available on VFs, or ID range
reservation for provisioning VFs by the PF.

Add a separate component for managing GuC IDs, that will replace
existing ID management. Start with bitmap() based implementation
that could be optimized later based on perf data.

Cc: Matthew Brost <[email protected]>
Signed-off-by: Michal Wajdeczko <[email protected]>
Reviewed-by: Matthew Brost <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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