add s4/s905y4 s4/s805x2 and s4/s805x2g signed binary.

Change-Id: I900a064b90d1d507c2a4f0838cec50f777159dbb
diff --git a/s4/s805x2/blob-bl40.bin.signed b/s4/s805x2/blob-bl40.bin.signed
new file mode 100755
index 0000000..d4486e6
--- /dev/null
+++ b/s4/s805x2/blob-bl40.bin.signed
Binary files differ
diff --git a/s4/s805x2g/blob-bl40.bin.signed b/s4/s805x2g/blob-bl40.bin.signed
new file mode 100755
index 0000000..770fea6
--- /dev/null
+++ b/s4/s805x2g/blob-bl40.bin.signed
Binary files differ
diff --git a/s4/s905y4/blob-bl40.bin.signed b/s4/s905y4/blob-bl40.bin.signed
new file mode 100755
index 0000000..49ce0bd
--- /dev/null
+++ b/s4/s905y4/blob-bl40.bin.signed
Binary files differ