[FIX] Fix initialization of process image

The process image is uninitialized until the application
uses it. This may be dangerous, therefore this fix initializes
the process image with 0.

This change is based on change for V1.08.4 from
Romain Naour <romain.naour@openwide.fr>

Change-Id: I9e69dbe6cc66781ce319016430fe4c64206df5fc
[FIX] Fix typos in 00000000_POWERLINK_CiA302-4_MN.xdd

The xdd was unusable with openCONFIGURATOR due to duplicate 0x20
subindexes and missing 0x2E subindexes.

Based on change for V1.08.4 from:
Romain Naour <romain.naour@openwide.fr>

Change-Id: I3477cbb9f5ebae870e5eb76ec7c9b20e01a44d18
[FIX] Fix access rights in obdmacro.h

This fix changes access rights for sub-index 0 for macro
OBD_RAM_INDEX_RAM_ARRAY_ALT and OBD_RAM_INDEX_RAM_PDO_MAPPING.
This is necessary to set storage attribute (e.g. kEplObdAccSRW) for
sub-index 0 too. It is needed if store/restore support is
implemented.

The change is based on change for V1.08.4 from
Daniel Krueger <daniel.krueger@systec-electronic.com>

Change-Id: Ib95ce216eb31874d607b5cd6f04c8e27eef60edc