soc/amd/picasso: Disable MP2 FW inclusion by default

Inclusion of MP2 firmware is optional and dependent on mainboard. Set
default option for including MP2 firmware in PSP directory to 'n'.

BUG=b:154880818

Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I1ff7527a409d8ac7f4d30e69eafc53975b63e49b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40680
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig
index afa18bc..c9f45f1 100644
--- a/src/soc/amd/picasso/Kconfig
+++ b/src/soc/amd/picasso/Kconfig
@@ -330,11 +330,11 @@
 
 config PSP_LOAD_MP2_FW
 	bool "Include MP2 blobs in PSP build"
-	default y
+	default n
 	help
 	  Include the MP2 firmwares and configuration into the PSP build.
 
-	  If unsure, answer 'y'
+	  If unsure, answer 'n'
 
 config PSP_LOAD_S0I3_FW
 	bool "Include S0I3 blob in PSP build"