maxwell_3d: Fix shader_config decodings.

src/video_core/engines/maxwell_3d.h

@@ -427,14 +427,11 @@ public:
                         BitField<0, 1, u32> enable;
                         BitField<4, 4, ShaderProgram> program;
                     };
-                    u32 start_id;
-                    INSERT_PADDING_WORDS(1);
-                    u32 gpr_alloc;
-                    ShaderStage type;
-                    INSERT_PADDING_WORDS(9);
+                    u32 offset;
+                    INSERT_PADDING_WORDS(14);
                 } shader_config[MaxShaderProgram];
 
-                INSERT_PADDING_WORDS(0x8C);
+                INSERT_PADDING_WORDS(0x80);
 
                 struct {
                     u32 cb_size;