lmb: staticise lmb_add_memory()

lmb_add_memory() is only called from the lmb module. Mark the function
as static.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/include/lmb.h b/include/lmb.h
index 34dbc25..aead799 100644
--- a/include/lmb.h
+++ b/include/lmb.h
@@ -124,14 +124,6 @@
  */
 int lmb_init(void);
 
-/**
- * lmb_add_memory() - Add memory range for LMB allocations.
- *
- * Add the entire available memory range to the pool of memory that
- * can be used by the LMB module for allocations.
- */
-void lmb_add_memory(void);
-
 long lmb_add(phys_addr_t base, phys_size_t size);
 
 phys_size_t lmb_get_free_size(phys_addr_t addr);
diff --git a/lib/lmb.c b/lib/lmb.c
index a30ae64..3265fad 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -605,7 +605,7 @@
 	}
 }
 
-void lmb_add_memory(void)
+static void lmb_add_memory(void)
 {
 	int i;
 	phys_addr_t bank_end;