Android patch: CLDR data: Add data for the XA/XB pseudo locales.

In ICU 68, icu4c/source/data/icu-config.xml is removed.

This CL adds pseudo locales used in some tests and excludes them from
com.ibm.icu.dev.test.format.DateTimeGeneratorTest#testJjMapping because
they are not real locales.

https://android.googlesource.com/platform/external/icu/+/338b5d35fdb86a9c4cb0ed59a67416693a0fe1e4

Test: n/a
Change-Id: I221e878aea812128ec4e96c7544ee1114f662716
1 file changed