amd_blobs: update submodule pointer

Pick up build 0x26 Picasso FSP binaries. The changes include increased
FSPS UPD block size from 0x152 to 0x202.

Change-Id: I11fc199ca7bc6ee7431c59d35a60d9ebd977bf10
Signed-off-by: Nikolai Vyssotski <nikolai.vyssotski@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51193
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>

3rdparty/amd_blobs

@@ -1 +1 @@
-Subproject commit 302c9f61488b2117f5315e4094ec044cc8ceb0ea
+Subproject commit 3b1a73470c4fe89195922b693232614fe279ca55