staging: vc04_services: vchiq_arm: Split driver static and runtime data

vchiq_drvdata combines two types of book-keeping data. There is
platform-specific static data (for e.g. cache lines size) and then
data needed for book-keeping at runtime.

Split the data into two structures: struct vchiq_platform_info and
struct vchiq_drv_mgmt. The vchiq_drv_mgmt is allocated at runtime
during probe and will be extended in subsequent patches to remove
all global variables allocated.

No functional changes intended in this patch.

Reviewed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Umang Jain <[email protected]>
Reviewed-by: Stefan Wahren <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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