grub2: fix a build regression on non-linux systems

Merge an upstream commit to correct a missing rename in generic code

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/boot/grub2/patches/001-verifiers-Blocklist-fallout-cleanup.patch

@@ -0,0 +1,31 @@
+From: David Michael <fedora.dm0@gmail.com>
+Date: Fri, 5 Jul 2019 07:45:59 -0400
+Subject: [PATCH] verifiers: Blocklist fallout cleanup
+
+Blocklist fallout cleanup after commit 5c6f9bc15 (generic/blocklist: Fix
+implicit declaration of function grub_file_filter_disable_compression()).
+
+Signed-off-by: David Michael <fedora.dm0@gmail.com>
+Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
+---
+
+--- a/grub-core/osdep/generic/blocklist.c
++++ b/grub-core/osdep/generic/blocklist.c
+@@ -59,7 +59,7 @@ grub_install_get_blocklist (grub_device_
+ 
+       grub_disk_cache_invalidate_all ();
+ 
+-      file = grub_file_open (core_path_dev, GRUB_FILE_TYPE_NONE | FILE_TYPE_NO_DECOMPRESS);
++      file = grub_file_open (core_path_dev, GRUB_FILE_TYPE_NONE | GRUB_FILE_TYPE_NO_DECOMPRESS);
+       if (file)
+ 	{
+ 	  if (grub_file_size (file) != core_size)
+@@ -116,7 +116,7 @@ grub_install_get_blocklist (grub_device_
+ 
+   grub_file_t file;
+   /* Now read the core image to determine where the sectors are.  */
+-  file = grub_file_open (core_path_dev, GRUB_FILE_TYPE_NONE | FILE_TYPE_NO_DECOMPRESS);
++  file = grub_file_open (core_path_dev, GRUB_FILE_TYPE_NONE | GRUB_FILE_TYPE_NO_DECOMPRESS);
+   if (! file)
+     grub_util_error ("%s", grub_errmsg);
+