coroipcc: proper path size in coroipcc_zcb_alloc

memory_map function internally limits maximum path size to
PATH_MAX but coroipcc_zcb_alloc passed smaller buffer.

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Steven Dake <sdake@redhat.com>
(cherry picked from commit 0273c54054f7e8c83b165daa1a4ded13f78f0515)

lib/coroipcc.c

@@ -1053,7 +1053,7 @@ coroipcc_zcb_alloc (
 {
 	struct ipc_instance *ipc_instance;
 	void *buf = NULL;
-	char path[128];
+	char path[PATH_MAX];
 	unsigned int res;
 	mar_req_coroipcc_zc_alloc_t req_coroipcc_zc_alloc;
 	coroipc_response_header_t res_coroipcs_zc_alloc;