angstrom.conf: arm: use compatible glibc and glibc-locale

oe-core moved to glibc and cross-localedef-native based on version 2.22.
Angstrom currently uses linaro glibc in version 2.20 for arm.
This leads to incompatible locales. They cause exeptions or hangs. e.g.:

root@colibri-imx6:~# sh -c "LANG=en_US"
sh: loadlocale.c:130: _nl_intern_locale_data: Assertion `cnt < (sizeof
(_nl_value_type_LC_COLLATE) / sizeof (_nl_value_type_LC_COLLATE[0]))'
failed.
Aborted

root@colibri-imx6:~# localectl status
^C

Signed-off-by: Max Krummenacher <max.oss.09@gmail.com>

conf/distro/angstrom.conf

@@ -58,12 +58,10 @@ ANGSTROM_GDB_VERSION                             ?= "7.9%"
 #use Linaro tools for ARM
 ANGSTROM_GCC_VERSION_arm                         ?= "linaro-4.9%"
 ANGSTROM_BINUTILS_VERSION_arm                    ?= "linaro-%"
-GLIBCVERSION_arm                                 ?= "linaro-2.2%"
 ANGSTROM_GDB_VERSION_arm                         ?= "linaro-%"
 ANGSTROM_GCC_VERSION_aarch64                     ?= "linaro-4.9%"
 ANGSTROM_BINUTILS_VERSION_aarch64                ?= "linaro-%"
 ANGSTROM_GDB_VERSION_aarch64                     ?= "linaro-%"
-GLIBCVERSION_aarch64                             ?= "linaro-2.2%"
 PREFERRED_VERSION_cross-localedef-native         ?= "2.2%"
 
 ANGSTROM_QEMU_VERSION                            ?= "2%"