fix build error

Author: chaxu01

ggml/src/ggml-cpu.c

@@ -7468,8 +7468,8 @@ static void ggml_compute_forward_mul_mat(
         for (int64_t i13 = 0; i13 < ne13; i13++)
             for (int64_t i12 = 0; i12 < ne12; i12++)
                 if (!llamafile_sgemm(ne01, ne11, ne00/ggml_blck_size(type),
-                                     (const char *)data + i12/r2*nb02 + i13/r3*nb03,
-                                     nb01/ggml_type_size(src0->type),
+                                     (const char *)src0->data + i12/r2*nb02 + i13/r3*nb03,
+                                     nb01/ggml_type_size(type),
                                      (const char *)src1->data + i12*nb12 + i13*nb13,
                                      nb11/ggml_type_size(src1->type),
                                      (char *)dst->data + i12*nb2 + i13*nb3,