interface examples: Avoid more duplicate definitions

examples/api/block_data_interface.c

@@ -19,6 +19,7 @@
 
 #define starpu_interface_block_ops my_starpu_interface_block_ops
 #define starpu_block_data_register my_starpu_block_data_register
+#define starpu_block_ptr_register my_starpu_block_ptr_register
 #define starpu_block_get_nx my_starpu_block_get_nx
 #define starpu_block_get_ny my_starpu_block_get_ny
 #define starpu_block_get_nz my_starpu_block_get_nz

examples/api/csr_data_interface.c

@@ -22,6 +22,7 @@
 #define starpu_csr_get_nnz my_starpu_csr_get_nnz
 #define starpu_csr_get_nrow my_starpu_csr_get_nrow
 #define starpu_csr_get_firstentry my_starpu_csr_get_firstentry
+#define starpu_csr_get_elemsize my_starpu_csr_get_elemsize
 #define starpu_csr_get_local_nzval my_starpu_csr_get_local_nzval
 #define starpu_csr_get_local_colind my_starpu_csr_get_local_colind
 #define starpu_csr_get_local_rowptr my_starpu_csr_get_local_rowptr