Make ReconcileSdkData more flexible

Instead of passing sdk package names and list of random strings to
installd, the client will pass the sub-directory name directly. The
client will be responsible for ensuring they don't create multiple
sub-directories for same sdk with different random suffixes.

Also, since "shared" sub-directory is just another type of sdk data
sub-directory, we no longer create it during sdk package path creation.
This directory should get created using ReconcileSdkData api by the
client.

Also cleaned up the tests and added SdkSandboxStorageHostTest in
TEST_MAPPING.

Bug: 211763739
Test: atest installd_service_test
Ignore-AOSP-First: Some of the cls are missing in AOSP. Will cherry-pick
this with rest of them together next week.
Change-Id: Ida7a50e0e3ecc8a997239890dfb8f8cb7e7b7871

Change-Id: Ie9cdc2c41bcec64028008a79654f2d38c017b6d1