fix(driver): use correct syntax for flexible array member

UBSAN (Undefined Behaviour Sanitizer) performs compile-time and runtime
checks based on declared array bounds. Flaxible Array Member used to be
declared with the [0] synthax, but should now be expressed with []
syntax to respect C99 standard (§6.7.2.1).

Signed-off-by: irozzo-1A <[email protected]>

Author: irozzo-1A

driver/ppm_events_public.h

@@ -2299,7 +2299,7 @@ struct ppm_proc_info {
 struct ppm_proclist_info {
 	int64_t n_entries;
 	int64_t max_entries;
-	struct ppm_proc_info entries[0];
+	struct ppm_proc_info entries[];
 };
 
 enum syscall_flags {