perf/dwc_pcie: fix some unreleased resources

Release leaked resources, such as plat_dev and dev_info.

Signed-off-by: Yunhui Cui <cuiyunhui@bytedance.com>
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Link: https://lore.kernel.org/r/20250220121716.50324-2-cuiyunhui@bytedance.com


Signed-off-by: Will Deacon <will@kernel.org>