[PATCH] pstore: rename two compression functions

We have following five functions which deal with pstore compression. This patch renamed two functions to make the names of those functions consistent: allocate_buf_for_compression-> pstore_init_compression free_buf_for_compression-> pstore_free_compression

[PATCH] pstore: rename two compression functions

We have following five functions which deal with pstore compression. This patch renamed two functions to make the names of those functions consistent: allocate_buf_for_compression-> pstore_init_compression free_buf_for_compression-> pstore_free_compression