tasks: find-sharedui-violation: Partition location

Allow for relocated partition directories in out, mainly for
devices which do not possess e.g. /product but must
distribute it in /system/product.

Use argparse to cope with increased argument count.

Test: Device without physical /product partition
      m out/target/product/<device>/shareduid_violation_modules.json
      -> Observe addition of violating apks from product
      partition in shareduid_violation_modules.json

Signed-off-by: Felix <google@ix5.org>
Change-Id: I2d7826b41fb5b924f15ae21a73178fa4eec6a879