drm/amd/pm: Replace one-element array with flexible-array member

There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use "flexible array members" for these cases. The older
style of one-element or zero-length arrays should no longer be used.
Reference:
https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arraysReported-by: NZeal Robot <zealci@zte.com.cn>
Signed-off-by: NChangcheng Deng <deng.changcheng@zte.com.cn>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/powerplay/inc/smu_ucode_xfer_cz.h

@@ -121,7 +121,7 @@ typedef struct SMU_Task SMU_Task;
 
 struct TOC {
     uint8_t JobList[NUM_JOBLIST_ENTRIES];
-    SMU_Task tasks[1];
+    SMU_Task tasks[];
 };
 
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