efi: Rename __get_map() to efi_get_memory_map()

Rename function in preparation for making it more flexible
and sharing it.
Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>

drivers/firmware/efi/efi-stub-helper.c

@@ -46,7 +46,7 @@ static void efi_printk(efi_system_table_t *sys_table_arg, char *str)
 }
 
 
-static efi_status_t __get_map(efi_system_table_t *sys_table_arg,
+static efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg,
 				       efi_memory_desc_t **map,
 				       unsigned long *map_size,
 				       unsigned long *desc_size)
@@ -97,7 +97,7 @@ static efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
 	u64 max_addr = 0;
 	int i;
 
-	status = __get_map(sys_table_arg, &map, &map_size, &desc_size);
+	status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
@@ -183,7 +183,7 @@ static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
 	unsigned long nr_pages;
 	int i;
 
-	status = __get_map(sys_table_arg, &map, &map_size, &desc_size);
+	status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size);
 	if (status != EFI_SUCCESS)
 		goto fail;