lmb: introduce a function to add memory to the lmb memory map

Introduce a function lmb_add_memory() to add available memory to the
LMB memory map. Call this function during board init once the LMB data
structures have been initialised.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

include/lmb.h

@@ -66,6 +66,17 @@ int lmb_init(void);
 void lmb_init_and_reserve(struct bd_info *bd, void *fdt_blob);
 void lmb_init_and_reserve_range(phys_addr_t base, phys_size_t size,
 				void *fdt_blob);
+
+/**
+ * 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.
+ *
+ * Return: None
+ */
+void lmb_add_memory(void);
+
 long lmb_add(phys_addr_t base, phys_size_t size);
 long lmb_reserve(phys_addr_t base, phys_size_t size);
 /**