hwc: Ignore SIGPIPE error when communicating with ppd

This avoids a potential crash in HWC if a SIGPIPE is thrown due
to failure communicating with the other end.

Bug: 9414907
Change-Id: I7f1de4f2ff0f287de4cad29dd92a6e964ba50224
Signed-off-by: Iliyan Malchev <malchev@google.com>
1 file changed