add sc2/s905x4 and sc2/s905c2 signed binary.
diff --git a/sc2/s905c2/blob-bl40.bin.signed b/sc2/s905c2/blob-bl40.bin.signed
new file mode 100755
index 0000000..366ee39
--- /dev/null
+++ b/sc2/s905c2/blob-bl40.bin.signed
Binary files differ
diff --git a/sc2/s905x4/blob-bl40.bin.signed b/sc2/s905x4/blob-bl40.bin.signed
new file mode 100755
index 0000000..6e00cad
--- /dev/null
+++ b/sc2/s905x4/blob-bl40.bin.signed
Binary files differ