vendorcode/siemens: Add LegacyDelay to hwilib

Add a new parameter to hwilib called LegacyDelay. It will be used to
define a delay time to wait for legacy devices if coreboot is too fast
for old and slow onboard devices.

Change-Id: Id0386fdea0ecfb3c1ff6ec1c456071246529950a
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/21517
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/vendorcode/siemens/hwilib/hwilib.c

@@ -385,7 +385,9 @@ static const struct param_info params[] = {
 	[FANSensorCfg7] = {
 		.pos[0] = {.blk_type = BLK_XIB, .offset = 0xd8, .len = 20},
 		.get_field = hwilib_read_bytes },
-
+	[LegacyDelay] = {
+		.pos[0] = {.blk_type = BLK_XIB, .offset = 0x20c, .len = 4},
+		.get_field = hwilib_read_bytes },
 };
 
 /** \brief This functions reads the given field from the first valid hwinfo

src/vendorcode/siemens/hwilib/hwilib.h

@@ -115,8 +115,8 @@ typedef enum {
 	netKind7,
 	netKind8,
 	netKind9,
-	netKind10
-
+	netKind10,
+	LegacyDelay
 } hwinfo_field_t;
 
 /* Define used values in supported fields */