Align all shared memory offsets to word boundary.

Since the read pointer, write pointer, data buffer and
EventFlag word occupy contiguous memory locations as per the default
MessageQueue/MQDescriptor constructors, ensure that all
offsets are aligned.

Bug: 34194487
Test: FMQ unit tests
Change-Id: I050d60f5481a13b8e45a42d00d6217bf7fcd7651
1 file changed