Add the following to the BSP buildfile:
libpci.so.3.0
libpci.so.2.3
This solution is explained further in the PCI v3 update release notes:
https://www.qnx.com/developers/articles/rel_7027_0.html#Install
You may need to update the buildfiles for the BSPs depending on how you specified the older BSP filenames. If you specified the filenames without a version, e.g., libpci.so, then you do not need to update the buildfile to use libpci.so.3. If you specified the filenames with a version, e.g., libpci.so.2.3, then you need to update the BSPs to use libpci.so.3.
If you are using a BSP that has pre-built drivers linked against libpci.so.2.3, you can continue using them with PCIv3 if you install the QNX SDP 7.1 Connectivity - PCI Shim Library package, com.qnx.qnx710.target.connectivity.pci.libshim, along with libpci.so.3 to satisfy the link dependency of the driver and allow it to run with the PCIv3 server. In this case, you have to use the shim version of libpci.so.2.3 as well as libpci.so.3 on your target and ensure your build file contains both names libpci.so.2.3 and libpci.so.