Extract chip-specific constants from imx9_rptun.c and imx9_rsctable.c
into new dispatch headers:
- hardware/imx9_rsctable.h: VDEV0_VRING_BASE and RESOURCE_TABLE_BASE,
selected per ARCH_CHIP define
- hardware/imx9_rptun.h: MU_INSTANCE, selected per ARCH_CHIP define
Rename the misnamed VRING_SHMEM constant in imx9_rptun.c to
RESOURCE_TABLE_BASE, which correctly reflects that this address points
to the resource table, not the vring shared memory region.
No functional change for i.MX95-M7 builds.
Signed-off-by: Maarten Zanders <maarten@zanders.be>
7ee57f42bb