fix: LOCAL_PATH for modules included in APEX is wrong

This change fixes a bug that LOCAL_PATH for modules included in an APEX
is set to the path of the APEX bundle, not to the path of the embedded
module. For example, LOCAL_PATH of libconscrypt included in
com.android.adbd was set to /system/core/adb instead of
/external/boringssl. This caused a problem that NOTICE file in
/external/boringssl is not tagged to libconscrypt, but the NOTICE file
for adbd is.

Fixing the problem by recording the module directories of the included
modules and emitting it in LOCAL_PATH.

Bug: 145347092
Test: Settings -> About Phone -> Legal Information -> Third-party
license. The license for /apex/com.android.adbd/lib64/libconscrypt.so is
OpenSSL.

Change-Id: I76f1830d5a10af63fa74dcc2a42730ffabb8c4ed