Rild: Ril should try to write again to the socket EAGAIN error

In case of  EAGAIN error, the RIL should write to socket again after some
time.

Change-Id: Ia4c8d17b7c16040a49a4c607a1d1350ebbe7847c
CRs-Fixed: 285312
Fixes typo in logging string.

Pointed out by bodhisatwa in
https://code.google.com/p/android/issues/detail?id=54098

Change-Id: I4cb42627bb0858360d6f88dedf9412720e4b5cca