change cert for Email.apk

N/A

Change-Id: I4d8d268bc420a087b7168bc04d4d86ca5cbee0a6
Signed-off-by: mochangming <mochangming@xiaomi.com>
update tools for build ota

N/A

Conflicts:

	build_target_files.sh
	target_files_template/META/apkcerts.txt

Change-Id: Ib99d00cde417585173e378481530ffd255fdd162
Signed-off-by: mochangming <mochangming@xiaomi.com>
update miui_releasetools

N/A

Change-Id: Ie64c40a89ea40727c525e290cf264e8cf06d69cb
Signed-off-by: mochangming <mochangming@xiaomi.com>