lmb: use a single function to free up memory

There is no need to have two separate API's for freeing up memory. Use
a single API lmb_free() to achieve this.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/cmd/load.c b/cmd/load.c
index a6e54fc..159767a 100644
--- a/cmd/load.c
+++ b/cmd/load.c
@@ -191,7 +191,7 @@
 			dst = map_sysmem(dst_addr, binlen);
 			memcpy(dst, binbuf, binlen);
 			unmap_sysmem(dst);
-			lmb_free(dst_addr, binlen);
+			lmb_free(dst_addr, binlen, LMB_NONE);
 		    }
 		    if ((store_addr) < start_addr)
 			start_addr = store_addr;