src/acpi: Add macro for FADT Minor Version and use it

Change-Id: I6a0e9b33c6a1045a3a4a6717487525b82d41e558
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62036
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lance Zhao

src/soc/amd/picasso/acpi.c

@@ -106,7 +106,7 @@ void acpi_fill_fadt(acpi_fadt_t *fadt)
 	fadt->flags |= cfg->fadt_flags; /* additional board-specific flags */
 
 	fadt->ARM_boot_arch = 0;	/* MUST be 0 ACPI 3.0 */
-	fadt->FADT_MinorVersion = 0;	/* MUST be 0 ACPI 3.0 */
+	fadt->FADT_MinorVersion = get_acpi_fadt_minor_version();
 
 	fadt->x_firmware_ctl_l = 0;	/* set to 0 if firmware_ctrl is used */
 	fadt->x_firmware_ctl_h = 0;