drm/amdgpu/vcn1.0: fix no previous prototype for functions

Include header file vcn_v1_0.h
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c

@@ -38,6 +38,7 @@
 
 #include "ivsrcid/vcn/irqsrcs_vcn_1_0.h"
 #include "jpeg_v1_0.h"
+#include "vcn_v1_0.h"
 
 #define mmUVD_RBC_XX_IB_REG_CHECK_1_0		0x05ab
 #define mmUVD_RBC_XX_IB_REG_CHECK_1_0_BASE_IDX	1