Reorder arch & vendorcode in Kconfig

Because Kconfig uses the first valid default that it comes across, the
'source' commands to load sub-Kconfigs should be ordered from the
most specific (mainboards) to less specific (chipsets) to least specific
(architectures).  This allows the mainboards to override chipsets and
architecture Kconfig files.

Because the architecture files were getting loaded ahead of the chipset
and cpu Kconfigs, the preferred defaults values for things such as
NUM_IPI_STARTS or RISCV_BOOTBLOCK_CUSTOM could not be set.

Change-Id: Ic327452833f012ec06dabb5b5ef661aba3aff464
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/10609
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Duncan Laurie <dlaurie@google.com>
diff --git a/src/Kconfig b/src/Kconfig
index b7d2e67..c282d21 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -334,10 +334,6 @@
 
 source "src/mainboard/Kconfig"
 
-source "src/arch/*/Kconfig"
-
-source "src/vendorcode/*/Kconfig"
-
 config SYSTEM_TYPE_LAPTOP
 	default n
 	bool
@@ -359,6 +355,9 @@
 source "src/ec/*/*/Kconfig"
 source "src/drivers/intel/fsp1_0/Kconfig"
 
+source "src/vendorcode/*/Kconfig"
+source "src/arch/*/Kconfig"
+
 endmenu
 
 source "src/device/Kconfig"