Accepting request 211329 from home:michael-chang:btrfs-snapshot-booting

- add new patches for booting btrfs snapshot (fate#316522) (fate#316232)
  * 0001-btrfs-rename-skip_default-to-follow_default.patch
  * 0002-btrfs-add-ability-to-boot-from-subvolumes.patch
  * 0003-cmdline-add-envvar-loader_cmdline_append.patch
  * 0004-btrfs-export-subvolume-envvars.patch

OBS-URL: https://build.opensuse.org/request/show/211329
OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=60

grub2.spec

@@ -135,6 +135,11 @@ Patch37:        grub2-fix-descriptor-leak-in-grub_util_is_imsm.patch
 Patch38:        grub2-fix-x86_64-efi-startup-stack-alignment.patch
 Patch39:        grub2-fix-x86_64-efi-callwrap-stack-alignment.patch
 Patch40:        0001-Fix-build-with-FreeType-2.5.1.patch
+# Btrfs snapshot booting related patches
+Patch100:       0001-btrfs-rename-skip_default-to-follow_default.patch
+Patch101:       0002-btrfs-add-ability-to-boot-from-subvolumes.patch
+Patch102:       0003-cmdline-add-envvar-loader_cmdline_append.patch
+Patch103:       0004-btrfs-export-subvolume-envvars.patch
 Requires:       gettext-runtime
 %if 0%{?suse_version} >= 1140
 Requires:       os-prober
@@ -254,6 +259,10 @@ mv po/grub.pot po/%{name}.pot
 %patch38 -p1
 %patch39 -p1
 %patch40 -p1
+%patch100 -p1
+%patch101 -p1
+%patch102 -p1
+%patch103 -p1
 
 # Generate po/LINGUAS for message catalogs ...
 ./linguas.sh