sconfig parser:

sconfig parser:
 - print erroneous string in error message
 - print line numbers starting from 1 instead of 0
 - exit with return code 1 on errors
 - check return values of fopen operations
 - only create output file if input file was parsed without errors

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5701 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1