Rename disto_[pxe_]getfile to distro_[pxe_]getfile

Replace 'disto' with 'distro' since they are all functions about distro
booting.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
diff --git a/boot/bootmeth_distro.c b/boot/bootmeth_distro.c
index fea09b2..5c6c687 100644
--- a/boot/bootmeth_distro.c
+++ b/boot/bootmeth_distro.c
@@ -35,8 +35,8 @@
 	return 0;
 }
 
-static int disto_getfile(struct pxe_context *ctx, const char *file_path,
-			 char *file_addr, ulong *sizep)
+static int distro_getfile(struct pxe_context *ctx, const char *file_path,
+			  char *file_addr, ulong *sizep)
 {
 	struct distro_info *info = ctx->userdata;
 	ulong addr;
@@ -113,7 +113,7 @@
 	addr = map_to_sysmem(bflow->buf);
 	info.dev = dev;
 	info.bflow = bflow;
-	ret = pxe_setup_ctx(&ctx, &cmdtp, disto_getfile, &info, true,
+	ret = pxe_setup_ctx(&ctx, &cmdtp, distro_getfile, &info, true,
 			    bflow->subdir);
 	if (ret)
 		return log_msg_ret("ctx", -EINVAL);
diff --git a/boot/bootmeth_pxe.c b/boot/bootmeth_pxe.c
index f1e2b4c..e699216 100644
--- a/boot/bootmeth_pxe.c
+++ b/boot/bootmeth_pxe.c
@@ -23,8 +23,8 @@
 #include <net.h>
 #include <pxe_utils.h>
 
-static int disto_pxe_getfile(struct pxe_context *ctx, const char *file_path,
-			     char *file_addr, ulong *sizep)
+static int distro_pxe_getfile(struct pxe_context *ctx, const char *file_path,
+			      char *file_addr, ulong *sizep)
 {
 	struct distro_info *info = ctx->userdata;
 	ulong addr;
@@ -142,7 +142,7 @@
 	info.dev = dev;
 	info.bflow = bflow;
 	info.cmdtp = &cmdtp;
-	ret = pxe_setup_ctx(ctx, &cmdtp, disto_pxe_getfile, &info, false,
+	ret = pxe_setup_ctx(ctx, &cmdtp, distro_pxe_getfile, &info, false,
 			    bflow->subdir);
 	if (ret)
 		return log_msg_ret("ctx", -EINVAL);