Add prebuilt release binary for MT8516 & MT8183

Add the prebuilt binaries for MT8516 and MT8183.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
diff --git a/prebuilt/mt8183/release/bl2.img b/prebuilt/mt8183/release/bl2.img
new file mode 100644
index 0000000..cdc4937
--- /dev/null
+++ b/prebuilt/mt8183/release/bl2.img
Binary files differ
diff --git a/prebuilt/mt8516/release/bl2.img b/prebuilt/mt8516/release/bl2.img
new file mode 100644
index 0000000..c87db13
--- /dev/null
+++ b/prebuilt/mt8516/release/bl2.img
Binary files differ