fsp_broadwell_de: Increase CONFIG_MAX_CPUS to 32

Fix to accomodate for boards with more than 16 cores.

Change-Id: I35b61d94491c21ef76717f761e566ca815880f27
Signed-off-by: Samuel Jimenez <aerojsam@gmail.com>
Reviewed-on: https://review.coreboot.org/27847
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/mainboard/intel/camelbackmountain_fsp/acpi_tables.c

@@ -36,7 +36,7 @@ unsigned long acpi_fill_madt(unsigned long current)
 
 	current = acpi_madt_irq_overrides(current);
 
-	for (i = 0; i < 16; i++)
+	for (i = 0; i < CONFIG_MAX_CPUS; i++)
 		current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, i, 0xD, 1);
 
 	return current;

src/soc/intel/fsp_broadwell_de/Kconfig

@@ -49,7 +49,7 @@ config MMCONF_BASE_ADDRESS
 
 config MAX_CPUS
 	int
-	default 16
+	default 32
 
 config CPU_ADDR_BITS
 	int