gpu: nvgpu: Unify posix sort unit with qnx

-Unify sort function with qnx as qsort is posix compliant.
-Update yaml accordingly.

Jira NVGPU-3625

Change-Id: I982570bccb3bc8720596bfacf48eb17a0fca2ddf
Signed-off-by: Shashank Singh <shashsingh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2134355
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

arch/nvgpu-posix.yaml

@@ -48,10 +48,15 @@ headers:
              include/nvgpu/posix/posix-fault-injection.h,
              include/nvgpu/posix/probe.h,
              include/nvgpu/posix/soc_fuse.h,
-             include/nvgpu/posix/sort.h,
              include/nvgpu/posix/vm.h,
              include/nvgpu/posix/posix_vidmem.h ]
 
+sort:
+  safe: yes
+  owner: Ajesh K
+  sources: [ include/nvgpu/posix/sort.h ]
+  deps:
+
 bug:
   safe: yes
   owner: Ajesh K

drivers/gpu/nvgpu/include/nvgpu/posix/sort.h

@@ -23,13 +23,13 @@
 #ifndef NVGPU_POSIX_SORT_H
 #define NVGPU_POSIX_SORT_H
 
-#include <nvgpu/bug.h>
+#include <stdlib.h>
 
 static void sort(void *base, size_t num, size_t size,
 		 int (*cmp)(const void *a, const void *b),
 		 void (*swap)(void *a, void *b, int n))
 {
-	nvgpu_posix_bug("sort() not implemented yet!");
+	qsort(base, num, size, cmp);
 }
 
 #endif /* NVGPU_POSIX_SORT_H */

drivers/gpu/nvgpu/include/nvgpu/sort.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2019, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -24,10 +24,8 @@
 
 #ifdef __KERNEL__
 #include <linux/sort.h>
-#elif defined(__NVGPU_POSIX__)
-#include <nvgpu/posix/sort.h>
 #else
-#include <nvgpu_rmos/include/sort.h>
+#include <nvgpu/posix/sort.h>
 #endif
 
 #endif /* NVGPU_SORT_H */