drm/amd/include:cleanup vega10 osssys header files.

Cleanup asic_reg/vega10/OSSSYS folder.
Signed-off-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/vega10_ih.c

@@ -27,8 +27,8 @@
 
 
 #include "vega10/soc15ip.h"
-#include "vega10/OSSSYS/osssys_4_0_offset.h"
-#include "vega10/OSSSYS/osssys_4_0_sh_mask.h"
+#include "oss/osssys_4_0_offset.h"
+#include "oss/osssys_4_0_sh_mask.h"
 
 #include "soc15_common.h"
 #include "vega10_ih.h"