S4D: add bb1st and device fip header templates from keys directory.

Change-Id: I3ef94167a4d2d437c24489faf7a9e88e79087193
Signed-off-by: Zhongfu Luo <zhongfu.luo@amlogic.com>
diff --git a/s4/s905c3eng/bb1st.bin b/s4/s905c3eng/bb1st.bin
new file mode 100644
index 0000000..11d2313
--- /dev/null
+++ b/s4/s905c3eng/bb1st.bin
Binary files differ
diff --git a/s4/s905c3eng/device-fip-header.bin b/s4/s905c3eng/device-fip-header.bin
new file mode 100644
index 0000000..26bb6fc
--- /dev/null
+++ b/s4/s905c3eng/device-fip-header.bin
Binary files differ