vendorcode/siemens: Add new values to hwilib

The Siemens mc_apl1 mainboard needs new values from hwilib.

- add Dsave time for board reset
- add backlight brightness for panel setting
- add backlight PWM period

Change-Id: I3a48654ef57c7f8accaabe60e8aec144e4fe5466
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/20159
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/vendorcode/siemens/hwilib/hwilib.c

@@ -152,6 +152,9 @@ static const struct param_info params[] = {
 		.mask = 0x400,
 		.mask_offset = 10,
 		.get_field = hwilib_read_bytes },
+	[NvramVirtTimeDsaveReset] = {
+		.pos[0] = {.blk_type = BLK_HIB, .offset = 0x1be, .len = 2},
+		.get_field = hwilib_read_bytes },
 	[BiosFlags] = {
 		.pos[0] = {.blk_type = BLK_HIB, .offset = 0x1c0, .len = 4},
 		.get_field = hwilib_read_bytes },
@@ -170,6 +173,12 @@ static const struct param_info params[] = {
 	[RTCType] = {
 		.pos[0] = {.blk_type = BLK_HIB, .offset = 0x1e8, .len = 1},
 		.get_field = hwilib_read_bytes },
+	[BL_Brightness] = {
+		.pos[0] = {.blk_type = BLK_SIB, .offset = 0xd8, .len = 1},
+		.get_field = hwilib_read_bytes },
+	[PF_PwmFreq] = {
+		.pos[0] = {.blk_type = BLK_SIB, .offset = 0xe7, .len = 1},
+		.get_field = hwilib_read_bytes },
 	[PF_Color_Depth] = {
 		.pos[0] = {.blk_type = BLK_SIB, .offset = 0xea, .len = 1},
 		.mask = 0x03,

src/vendorcode/siemens/hwilib/hwilib.h

@@ -39,12 +39,15 @@ typedef enum {
 	SPD,
 	FF_FreezeDis,
 	FF_FanReq,
+	NvramVirtTimeDsaveReset,
 	BiosFlags,
 	MacMapping1,
 	MacMapping2,
 	MacMapping3,
 	MacMapping4,
 	RTCType,
+	BL_Brightness,
+	PF_PwmFreq,
 	PF_Color_Depth,
 	PF_DisplType,
 	PF_DisplCon,