lavc/ac3dsp: fix R-V HAVE_RVV scope issue

fix R-V HAVE_RVV scope issue

Reviewed-by: Rémi Denis-Courmont <[email protected]>
Signed-off-by: Jun Zhao <[email protected]>

Author: mypopydev

libavcodec/riscv/ac3dsp_init.c

@@ -65,8 +65,8 @@ av_cold void ff_ac3dsp_init_riscv(AC3DSPContext *c)
                 c->sum_square_butterfly_int32 =
                     ff_sum_square_butterfly_int32_rvv;
 #  endif
-# endif
         }
     }
+# endif
 #endif
 }