mb/system76: Add space for ramtop in CMOS layout

Fixes building when `USE_OPTION_TABLE` is selected.

Change-Id: I4fb017aa549b24eda6b9e0356bc1776d4044c95d
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76154
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jeremy Soller <jeremy@system76.com>

src/mainboard/system76/addw1/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/adl/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/bonw14/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/cml-u/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/gaze15/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/kbl-u/cmos.layout

@@ -12,6 +12,7 @@ entries
 400	8	r	0	century
 
 412	4	e	6	debug_level
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/oryp5/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/oryp6/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/rpl/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/tgl-h/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/tgl-u/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations

src/mainboard/system76/whl-u/cmos.layout

@@ -14,6 +14,7 @@ entries
 412	4	e	6	debug_level
 416	1	e	2	me_state
 417	3	h	0	me_state_counter
+904	80	h	0	ramtop
 984	16	h	0	check_sum
 
 enumerations