KeyPairGeneratorTest: Add test for bug 28384942

We should be able to generate key pairs when the default locale
is set to farsi (or any other locale with non arabic digits).

bug: 28384942

(cherry picked from commit 5690417e9c072a1344aaf7a35d88b555e092c8db)

Change-Id: Ice3484f31978e2c5aa53b9d76b61a25dd56b10e7
1 file changed