Afar locales: Months and days updated from CLDR (bug 21897).

Afar locales: Months and days updated from CLDR (bug 21897).

This commit updates month and weekday names (full and abbreviated)
from CLDR 35.1 with the following exceptions.

It was not clear why the full name of February in aa_DJ and aa_ER was
"Kudo" while the abbreviated version is "Nah" but some additional
sources [1] [2] as well as the content of aa_ER and aa_ER@saaho
suggest it should be "Naharsi Kudo".  This commit consequently sets
the translation of February to "Naharsi Kudo" in aa_DJ and aa_ET.

aa_ER@saaho is not supported by CLDR but since the month names were
identical to aa_ER before this commit, the same values have been copied
from aa_ER.

Links:

[1] https://fr.wiktionary.org/wiki/naharsi_kudo
[2] http://www.mcit.gov.et/web/guest/-/localization-standard-for-afaraf

	[BZ #21897]
	* localedata/locales/aa_DJ (abday): Update from CLDR, all words
	begin with an uppercase letter now.
	(abmon): Likewise.
	(mon): Update from CLDR, reword February from "Kudo" to
	"Naharsi Kudo", April from "Agda Baxisso" to "Agda Baxis",
	and August from "Liiqen" to "Leqeeni".
	* localedata/locales/aa_ER (mon): Update from CLDR, reword
	April from "Agda Baxisso" to "Agda Baxis" and August from
	"Leqeeni" to "Liiqen".
	* localedata/locales/aa_ER@saaho (mon): Likewise.
	* localedata/locales/aa_ET (abmon): Update from CLDR, reword
	abbreviated February from "Kud" to "Nah".
	(mon): Update from CLDR, reword February from "Kudo" to
	"Naharsi Kudo" and April from "Agda Baxisso" to "Agda Baxis".