Allow OTA package size larger than 2GiB(2147483647 bytes) on sideload.

At present, multiple partitions such as vendor have been added,
which reduces the coupling between mobile phone manufacturers
and Android systems. However, it may increase the generated
package size substantially (e.g. from ~200MB to ~800MB).
Causes the package size to exceed the int limit (2147483647 bytes).
Change the int length parameters to long.

Bug: http://b/112003354


Test: adb sideload ota.zip (ota.zip bigger than 2147483647 bytes)
Change-Id: Ifb656431f7b961ac0e91754107578dc8b89ff14e
Signed-off-by: katao <katao@xiaomi.com>