shared/sol-fbp-graph: fix possible use of unitialized var
shared/sol-fbp-graph: fix possible use of unitialized var

Fix issue:

./src/shared/sol-fbp-parser.c:311:16: warning: ‘ep’ may be used
uninitialized in this function [-Wmaybe-uninitialized]

Signed-off-by: Bruno Dilly <ea4fb6320c1221b6a559089d8ab97ffc53fc6586@intel.com>

wzhen12/soletta,dorileo/soletta,lpereira/soletta,wzhen12/soletta,edersondisouza/soletta,wzhen12/soletta,bsmelo/soletta,lpereira/soletta,bsmelo/soletta,dorileo/soletta,bsmelo/soletta,dorileo/soletta,lpereira/soletta,edersondisouza/soletta,edersondisouza/soletta,dorileo/soletta,lpereira/soletta,wzhen12/soletta,dorileo/soletta,bsmelo/soletta,lpereira/soletta,dorileo/soletta,bsmelo/soletta,edersondisouza/soletta,wzhen12/soletta,edersondisouza/soletta,bsmelo/soletta,edersondisouza/soletta,wzhen12/soletta