adt-installer: check if sudo is needed when installing target sysroot

adt-installer: check if sudo is needed when installing target sysroot

Currently, if SDK is installed in a directory that needs sudo
preivileges, the target sysroot is also installed with sudo, even though
the location is in users's home directory.

This patch reuses the ownership checking code and uses it to check if
sudo is needed for target sysroot too.

[YOCTO #5259]

(From OE-Core rev: 5acfced041477d8c272485196e87ad601a0ce5b4)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>