Concept of 'current position' exists only for random-access devices.
As documented, for sequential devices QIODevice::pos() must always
return 0. Prevent a modification of the internal 'pos' member in
QIODevice::readAll() method to follow this rule.
Change-Id: Ida2ee6a629ccfc3068d62f95ab1064ada13fdda5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>