BaseTools: Fix incorrect formatting of GenFds command dictionary

BaseTools: Fix incorrect formatting of GenFds command dictionary

GenFdsCommand returned dictionary with elements that
are not compatible with GenFdsApi.
As a result the following options were not processed by GenFdsApi:
-v, -q, -d, --genfds-multi-thread, --ignore-sources
The issue is introduced by commit b3497bad1221704a5dbc5da0b10f42625f1ad2ed.

V2: Remove EFI_SOURCE references

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Felix Polyudov <felixp@ami.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>