drivers/perf: hisi: Delete redundant blank line of DDRC PMU

Do not add blank line at the end of a code block defined by braces.

Signed-off-by: Junhao He <hejunhao3@huawei.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/20241210141525.37788-11-yangyicong@huawei.com


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