fix(rockchip): pmu: Do not mark already defined functions as weak

These functions are already defined as static functions in same header
Fixes

| plat/rockchip/common/drivers/pmu/pmu_com.h:35:14: error: weak identifier 'pmu_power_domain_ctr' never declared [-Werror]
| #pragma weak pmu_power_domain_ctr
|              ^
| plat/rockchip/common/drivers/pmu/pmu_com.h:36:14: error: weak identifier 'check_cpu_wfie' never declared [-Werror]
| #pragma weak check_cpu_wfie
|              ^

Signed-off-by: Khem Raj <raj.khem@gmail.com>
[fixed alignment in commit log]
[added fix(rockchip): prefix in commit title]
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Change-Id: I96d4acbe743ba4b8996f0be0fa713b341bd4903c
diff --git a/plat/rockchip/common/drivers/pmu/pmu_com.h b/plat/rockchip/common/drivers/pmu/pmu_com.h
index 022bb02..84f9421 100644
--- a/plat/rockchip/common/drivers/pmu/pmu_com.h
+++ b/plat/rockchip/common/drivers/pmu/pmu_com.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2024, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -32,8 +32,6 @@
 };
 
 #pragma weak plat_ic_get_pending_interrupt_id
-#pragma weak pmu_power_domain_ctr
-#pragma weak check_cpu_wfie
 
 static inline uint32_t pmu_power_domain_st(uint32_t pd)
 {