intel/broadwell: Replace some __PRE_RAM__ use

Guards are required due to different PCI accessor
signatures.

Change-Id: I60e87f16a48565917f6ee9d05cc59d2b9373270c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35381
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/broadwell/pch.c

@@ -73,7 +73,7 @@ u32 pch_read_soft_strap(int id)
 	return SPIBAR32(SPIBAR_FDOD);
 }
 
-#ifndef __PRE_RAM__
+#ifndef __SIMPLE_DEVICE__
 
 /* Put device in D3Hot Power State */
 static void pch_enable_d3hot(struct device *dev)