Hudson: Cleanup - change SB800 references to hudson

Go through southbridge/amd/agesa/hudson, thatcher and parmer
mainboard directories and change all references to sb800 to
reference hudson instead.

This is just cleanup and should make no functional difference.

Change-Id: Icd6a9a08c4bbf5e1aed394362d24c05811ed1fba
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/2177
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>

src/mainboard/amd/thatcher/acpi_tables.c

@@ -62,7 +62,7 @@ unsigned long acpi_fill_madt(unsigned long current)
 	/* create all subtables for processors */
 	current = acpi_create_madt_lapics(current);
 
-	/* Write SB800 IOAPIC, only one */
+	/* Write Hudson IOAPIC, only one */
 	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, CONFIG_MAX_CPUS,
 					   IO_APIC_ADDR, 0);