Change following functions in load.c to static.

- carve_out_mem_range
- update_reserved_ranges

Both functions are declared as extern but they are not used
outside of load.c It appears that they are helper functions so should
have been declared as static instead.

Change-Id: I00eca4c2eb4c0915e784a8c7e587b08c57dc1dee
diff --git a/src/load.c b/src/load.c
index c0db072..639291a 100644
--- a/src/load.c
+++ b/src/load.c
@@ -172,9 +172,9 @@
  * remove it from them. Return true on success, or false if no large enough
  * contiguous range is found.
  */
-bool carve_out_mem_range(struct mem_range *mem_ranges, size_t mem_ranges_count,
-			 uint64_t size_to_find, paddr_t *found_begin,
-			 paddr_t *found_end)
+static bool carve_out_mem_range(struct mem_range *mem_ranges,
+				size_t mem_ranges_count, uint64_t size_to_find,
+				paddr_t *found_begin, paddr_t *found_end)
 {
 	size_t i;
 
@@ -206,10 +206,10 @@
  * reserved ranges after adding the new ones.
  * `before` and `after` must be arrays of exactly `mem_ranges_count` elements.
  */
-bool update_reserved_ranges(struct boot_params_update *update,
-			    const struct mem_range *before,
-			    const struct mem_range *after,
-			    size_t mem_ranges_count)
+static bool update_reserved_ranges(struct boot_params_update *update,
+				   const struct mem_range *before,
+				   const struct mem_range *after,
+				   size_t mem_ranges_count)
 {
 	size_t i;