dm: blk: Rename get_dev() to blk_get_dev()

The current name is too generic. Add a 'blk_' prefix to aid searching and
make its purpose clearer.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
diff --git a/disk/part.c b/disk/part.c
index 7f98d89..2466c3e 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -101,7 +101,7 @@
 	return NULL;
 }
 
-struct blk_desc *get_dev(const char *ifname, int dev)
+struct blk_desc *blk_get_dev(const char *ifname, int dev)
 {
 	return get_dev_hwpart(ifname, dev, 0);
 }
@@ -111,7 +111,7 @@
 	return NULL;
 }
 
-struct blk_desc *get_dev(const char *ifname, int dev)
+struct blk_desc *blk_get_dev(const char *ifname, int dev)
 {
 	return NULL;
 }