S7: add SDP24430 blob-bl40.bin.signed

Change-Id: Ic6e9b036710753add1a95bf0c0574e3c75204b08
Signed-off-by: Zhongfu Luo <zhongfu.luo@amlogic.com>
diff --git a/s7/sdp24430/blob-bl40.bin.signed b/s7/sdp24430/blob-bl40.bin.signed
new file mode 100644
index 0000000..3c0d4c4
--- /dev/null
+++ b/s7/sdp24430/blob-bl40.bin.signed
Binary files differ