pineview boards: Factor out MAX_CPUS

Pineview has at most 4 threads.

Change-Id: I0f45f002d0bab0345bc061ac3c7a29237a536cc5
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41843
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/cpu/intel/socket_FCBGA559/Kconfig b/src/cpu/intel/socket_FCBGA559/Kconfig
index e6e904d..5105f09 100644
--- a/src/cpu/intel/socket_FCBGA559/Kconfig
+++ b/src/cpu/intel/socket_FCBGA559/Kconfig
@@ -27,4 +27,8 @@
 	  The amount of anticipated stack usage in CAR by bootblock and
 	  other stages.
 
+config MAX_CPUS
+	int
+	default 4
+
 endif
diff --git a/src/mainboard/foxconn/d41s/Kconfig b/src/mainboard/foxconn/d41s/Kconfig
index a272d1e..93ce389 100644
--- a/src/mainboard/foxconn/d41s/Kconfig
+++ b/src/mainboard/foxconn/d41s/Kconfig
@@ -18,10 +18,6 @@
 	select DRIVERS_I2C_CK505
 	select INTEL_GMA_HAVE_VBT
 
-config MAX_CPUS
-	int
-	default 4
-
 config MAINBOARD_DIR
 	string
 	default "foxconn/d41s"
diff --git a/src/mainboard/intel/d510mo/Kconfig b/src/mainboard/intel/d510mo/Kconfig
index be0190f..cd6260b 100644
--- a/src/mainboard/intel/d510mo/Kconfig
+++ b/src/mainboard/intel/d510mo/Kconfig
@@ -18,10 +18,6 @@
 	select DRIVERS_I2C_CK505
 	select INTEL_GMA_HAVE_VBT
 
-config MAX_CPUS
-	int
-	default 4
-
 config MAINBOARD_DIR
 	string
 	default "intel/d510mo"