[PATCH v2] selftests/powerpc: Fix pkey syscall redefinitions

On some distros, there are conflicts w.r.t to redefinition
of pkey syscall numbers which cause build failures. This
fixes them.

Reported-by: Sachin Sant <redacted>
Signed-off-by: Sandipan Das <redacted>
---
Previous versions can be found at:
v1: https://lore.kernel.org/linuxppc-dev/20200803074043.466809-1-sandipan@linux.ibm.com/ (local)

Changes in v2:
- Fix incorrect commit message.

---
 tools/testing/selftests/powerpc/include/pkeys.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/powerpc/include/pkeys.h b/tools/testing/selftests/powerpc/include/pkeys.h
index 6ba95039a034..26eef5c1f8ea 100644
--- a/tools/testing/selftests/powerpc/include/pkeys.h
+++ b/tools/testing/selftests/powerpc/include/pkeys.h

@@ -31,8 +31,13 @@
 
 #define SI_PKEY_OFFSET	0x20
 
+#undef SYS_pkey_mprotect
 #define SYS_pkey_mprotect	386
+
+#undef SYS_pkey_alloc
 #define SYS_pkey_alloc		384
+
+#undef SYS_pkey_free
 #define SYS_pkey_free		385
 
 #define PKEY_BITS_PER_PKEY	2

-- 
2.25.1