s32gen1:pcie: Cleanup

commit 2ed3cb21a393867ac02c77795d97924d0abeef06 from
https://source.codeaurora.org/external/autobsps32/linux



- Remove debug write macros and increase verbosity in the write functions
called from the DW APIs
- Remove statically configured BARs, as this will be performed on demand
by the EPF Test

Issue: ALB-7907

Signed-off-by: Ionut Vicovan <Ionut.Vicovan@nxp.com>
Signed-off-by: Zhantao Tang <zhantao.tang@windriver.com>