intel/nehalem: Fix soft reset detection.

Change-Id: I4575cddc35dc8309372beafec441d194bc145242
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5267
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)

src/northbridge/intel/nehalem/raminit.c

@@ -4970,7 +4970,7 @@ void raminit(const int s3resume, const u8 *spd_addrmap)
 	pcie_write_config8(SOUTHBRIDGE, GEN_PMCON_2,
 		      pcie_read_config8(SOUTHBRIDGE, GEN_PMCON_2) & ~0x80);
 	udelay(10000);
-	write_mchbar16(0x2ca8, 0x0);
+	write_mchbar16(0x2ca8, 0x8);
 
 #if REAL
 	udelay(1000);