devices/posix/epiphany: Fix intrusiveness
devices/posix/epiphany: Fix intrusiveness

Move init/fini code from dev_early_init/dev_late_fini to
dev_init/dev_fini.

early_init/late_fini are called from __pal_init/__pal_fini, which are
declared as constructor/destructor. Thus the code in
early_init/late_fini will always be implicitly called from any program
that links with -lpal directly, or links with a library that links with
-lpal.

Because of this we should keep the code in early_init/late_fini to a
minimum.

Signed-off-by: Ola Jeppsson <793f970c52ded1276b9264c742f19d1888cbaf73@adapteva.com>

parallella/pal,parallella/pal,aolofsson/pal,aolofsson/pal,parallella/pal,parallella/pal,aolofsson/pal,parallella/pal,aolofsson/pal