Add en-XC (cracked pseudo-locale) to L10n build

#

# This is a build configuration that just contains a list of languages.

# It helps in situations where languages must come first in the list,

# mostly because screen densities interfere with the list of locales and

# the system misbehaves when a density is the first locale.

# These are all the locales that have translations and are displayable

# by TextView in this branch.

PRODUCT_LOCALES := en_US en_AU en_IN fr_FR it_IT es_ES et_EE de_DE nl_NL cs_CZ pl_PL ja_JP zh_TW zh_CN zh_HK ru_RU ko_KR nb_NO es_US da_DK el_GR tr_TR pt_PT pt_BR sv_SE bg_BG ca_ES en_GB fi_FI hi_IN hr_HR hu_HU in_ID iw_IL lt_LT lv_LV ro_RO sk_SK sl_SI sr_RS uk_UA vi_VN tl_PH ar_EG fa_IR th_TH sw_TZ ms_MY af_ZA zu_ZA am_ET en_XA ar_XB fr_CA km_KH lo_LA ne_NP si_LK mn_MN hy_AM az_AZ ka_GE my_MM mr_IN ml_IN is_IS mk_MK ky_KG eu_ES gl_ES bn_BD ta_IN kn_IN te_IN uz_UZ ur_PK kk_KZ sq_AL gu_IN pa_IN be_BY bs_BA sr_Latn_RS

#

# These are all the locales that have translations.

PRODUCT_LOCALES := \

        en_US \

        af_ZA \

        am_ET \

        ar_EG \

        ar_XB \

        az_AZ \

        be_BY \

        bg_BG \

        bn_BD \

        bs_BA \

        ca_ES \

        cs_CZ \

        da_DK \

        de_DE \

        el_GR \

        en_AU \

        en_GB \

        en_IN \

        en_XA \

        en_XC \

        es_ES \

        es_US \

        et_EE \

        eu_ES \

        fa_IR \

        fi_FI \

        fr_CA \

        fr_FR \

        gl_ES \

        gu_IN \

        hi_IN \

        hr_HR \

        hu_HU \

        hy_AM \

        in_ID \

        is_IS \

        it_IT \

        iw_IL \

        ja_JP \

        ka_GE \

        kk_KZ \

        km_KH \

        kn_IN \

        ko_KR \

        ky_KG \

        lo_LA \

        lt_LT \

        lv_LV \

        mk_MK \

        ml_IN \

        mn_MN \

        mr_IN \

        ms_MY \

        my_MM \

        nb_NO \

        ne_NP \

        nl_NL \

        pa_IN \

        pl_PL \

        pt_BR \

        pt_PT \

        ro_RO \

        ru_RU \

        si_LK \

        sk_SK \

        sl_SI \

        sq_AL \

        sr_Latn_RS \

        sr_RS \

        sv_SE \

        sw_TZ \

        ta_IN \

        te_IN \

        th_TH \

        tl_PH \

        tr_TR \

        uk_UA \

        ur_PK \

        uz_UZ \

        vi_VN \

        zh_CN \

        zh_HK \

        zh_TW \

        zu_ZA