mb/asus/p8h61-m_pro: Disable SVID LDN

The SVID functionality is not used on this mainboard. Turn it off.

Change-Id: Iea891975b32d24f54edec9d8c36391ec60a37d0c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40739
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

src/mainboard/asus/p8h61-m_pro/devicetree.cb

@@ -102,7 +102,7 @@ chip northbridge/intel/sandybridge
 					device pnp 2e.f on		# GPIO Push-Pull or Open-drain
 						irq 0xf0 = 0x9d
 					end
-					device pnp 2e.14 on end		# SVID
+					device pnp 2e.14 off end	# SVID
 					device pnp 2e.16 on		# Deep Sleep
 						io 0x30 = 0x20
 					end