lenovo/x201: Fix order of SPI init.

The lock bit for UVSVC/LVSVC was set before both registers were programmed.

Change-Id: I000440db5c8dd2f260ebc1b69108b75621faf7b3
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5167
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>