ANDROID: Publish uncompressed Image on aarch64

So we can use the new download_from_ci script.

Bug: 172085130
Change-Id: I679ba3fc334b29ae82806f09e2acfc4dad486bd1
Signed-off-by: Will McVicker <willmcvicker@google.com>

Author: Will McVicker

build.config.aarch64

@@ -5,6 +5,7 @@ CROSS_COMPILE=aarch64-linux-androidkernel-
 LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin
 
 FILES="
+arch/arm64/boot/Image
 arch/arm64/boot/Image.gz
 vmlinux
 System.map