vendorcode/amd/agesa/f15tn/*/F15TnMsrTables.c: Topology Extensions Support

Topology Extensions Support (bit 54 of 0xC0011005) applies to
PACKAGE_TYPE_FS1r2 also. Rids us of:

 "Re-enabling disabled Topology Extensions Support"

showing up in dmesg.

Change-Id: Id123fa9632936c150cf1aebc4d34b404a4398ead
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7671
Tested-by: build bot (Jenkins)
Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>