amdfam10 boards: Use defaults for get_pci1234()

All these boards use the same default initialiser.

As this is initialized late after device enumeration,
it can't really be used to alter platform configuration.

Change-Id: I30fc0298081df0442ec4e9a527340b93a3cd6106
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30648
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/include/cpu/amd/amdfam10_sysconf.h

@@ -68,6 +68,7 @@ extern struct amdfam10_sysconf_t sysconf;
 
 void get_bus_conf(void);
 void get_pci1234(void);
+void get_default_pci1234(int mb_hc_possible);
 
 extern u8 pirq_router_bus;