ACPICA: Rename nameseg length macro/define for clarity

ACPICA commit 24870bd9e73d71e2a1ff0a1e94519f8f8409e57d

ACPI_NAME_SIZE changed to ACPI_NAMESEG_SIZE
This clarifies that this is the length of an individual
nameseg, not the length of a generic namestring/namepath.
Improves understanding of the code.

Link: https://github.com/acpica/acpica/commit/24870bd9
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

include/acpi/actbl.h

@@ -66,14 +66,14 @@
  ******************************************************************************/
 
 struct acpi_table_header {
-	char signature[ACPI_NAME_SIZE];	/* ASCII table signature */
+	char signature[ACPI_NAMESEG_SIZE];	/* ASCII table signature */
 	u32 length;		/* Length of table in bytes, including this header */
 	u8 revision;		/* ACPI Specification minor version number */
 	u8 checksum;		/* To make sum of entire table == 0 */
 	char oem_id[ACPI_OEM_ID_SIZE];	/* ASCII OEM identification */
 	char oem_table_id[ACPI_OEM_TABLE_ID_SIZE];	/* ASCII OEM table identification */
 	u32 oem_revision;	/* OEM revision number */
-	char asl_compiler_id[ACPI_NAME_SIZE];	/* ASCII ASL compiler vendor ID */
+	char asl_compiler_id[ACPI_NAMESEG_SIZE];	/* ASCII ASL compiler vendor ID */
 	u32 asl_compiler_revision;	/* ASL compiler version */
 };