fmap: fmap_create() takes const name

fmap_create() doesn't modify this param.

BUG=b:288327526
TEST=build

Change-Id: Icd2c4a2a57e13e27fe22a664ce40b4727afdf4ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/flashmap/+/5034761
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Commit-Queue: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
diff --git a/lib/fmap.c b/lib/fmap.c
index 860ff89..c5912b8 100644
--- a/lib/fmap.c
+++ b/lib/fmap.c
@@ -293,7 +293,7 @@
 }
 
 /* allocate and initialize a new fmap structure */
-struct fmap *fmap_create(uint64_t base, uint32_t size, uint8_t *name)
+struct fmap *fmap_create(uint64_t base, uint32_t size, const uint8_t *name)
 {
 	struct fmap *fmap;
 
diff --git a/lib/fmap.h b/lib/fmap.h
index ca75a17..571e486 100644
--- a/lib/fmap.h
+++ b/lib/fmap.h
@@ -148,7 +148,7 @@
  * returns NULL to indicate failure
  */
 extern struct fmap *fmap_create(uint64_t base,
-                                uint32_t size, uint8_t *name);
+                                uint32_t size, const uint8_t *name);
 
 /* free memory used by an fmap structure */
 extern void fmap_destroy(struct fmap *fmap);