ACPICA: SPCR: Update the SPCR table to version 4

ACPICA: SPCR: Update the SPCR table to version 4

ACPICA commit 1eeff52124a45d5cd887ba5687bbad0116e4d211

The Microsoft Serial Port Console Redirection (SPCR) specification
revision 1.09 comprises additional fields [1]. The newly added fields
are:
- RISC-V SBI
- Precise Baud Rate
- namespace_string_length
- namespace_string_offset
- namespace_string

Additionaly, this code will support up to SPCR revision 1.10, as it
includes only minor wording changes.

Link: https://learn.microsoft.com/en-us/windows-hardware/drivers/serports/serial-port-console-redirection-table
Link: https://github.com/acpica/acpica/commit/1eeff521
Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>