Use standard initializers

Use standard initializers rather than GNU extension initializers to
prevent clang from spewing warnings about nonstandard code.

BUG: 18193625

Change-Id: I19bf7fe9c401534af82d5a08e68fbd486bec8351
Signed-off-by: Bernhard Rosenkränzer <Bernhard.Rosenkranzer@linaro.org>