fix(relibc): bump redox-ioctl's redox_syscall pin to 0.8.1

Base build was failing with:

  error[E0277]: `?` couldn't convert the error to `syscall::error::Error`
    --> drivers/graphics/driver-graphics/src/lib.rs

because relibc's redox-ioctl sub-crate pins `redox_syscall = "0.7"`
which uses one syscall::Error type, but the rest of the build
(redox-scheme 0.11.1, base workspace redox_syscall 0.8.1) uses
another. Two versions of the same type can't unify across crate
boundaries.

Bump the pin in relibc/redox-ioctl/Cargo.toml to 0.8.1 to match.

local/patches/gettext/01-external-gettext.patch

@@ -0,0 +1,25 @@
+--- a/gettext-tools/configure.ac
++++ b/gettext-tools/configure.ac
+@@ -140,7 +140,7 @@
+ 
+ dnl These are the only lines required to internationalize the package.
+ dnl (OK, not quite, the AC_CONFIG_FILES has also some parts.)
+-AM_GNU_GETTEXT([use-libtool], [need-ngettext], [\${top_builddir}/../gettext-runtime/intl])
++AM_GNU_GETTEXT([external use-libtool], [need-ngettext], [\${top_builddir}/../gettext-runtime/intl])
+ 
+ dnl This option allows to build gettext-tools without (re)building libtextstyle.
+ AC_ARG_WITH([installed-libtextstyle],
+--- a/gettext-runtime/configure.ac
++++ b/gettext-runtime/configure.ac
+@@ -107,7 +107,7 @@
+ AM_CONDITIONAL([WINDOWS_NATIVE], [test $is_windows_native = yes])
+ 
+ dnl Checks for libraries.
+ 
+ dnl These are the only lines required to internationalize the package.
+ dnl (OK, not quite, the AC_CONFIG_FILES has also some parts.)
+-AM_GNU_GETTEXT([use-libtool], [need-ngettext], [\${top_builddir}/intl])
++AM_GNU_GETTEXT([external use-libtool], [need-ngettext], [\${top_builddir}/intl])
+ 
+ dnl Checks for header files, functions and declarations.
+ gl_INIT

local/patches/relibc/P0-redox-ioctl-syscall-0.8.1.patch

@@ -0,0 +1,9 @@
+--- a/redox-ioctl/Cargo.toml
++++ b/redox-ioctl/Cargo.toml
+@@ -9,5 +9,5 @@ description = "Ioctl definitions and (de)serialization for Redox"
+ [dependencies]
+ drm-sys = "0.8.0"
+-redox_syscall = "0.7"
++redox_syscall = "0.8.1"
+ 
+ [features]

recipes/core/relibc/recipe.toml

@@ -2,6 +2,8 @@
 git = "https://gitlab.redox-os.org/redox-os/relibc.git"
 rev = "861bbb0"
 patches = [
+    # Bump redox-ioctl's redox_syscall pin to 0.8.1 (matches rest of build)
+    "P0-redox-ioctl-syscall-0.8.1.patch",
     "P3-eventfd-mod.patch",
     # Add pub mod bits_eventfd to header/mod.rs
     "P3-bits-eventfd-mod.patch",