Move the signing-related test data (keys, certificates, OpenSSL and
SoftHSM2 configuration, dummy engine source) into the fit/ subdirectory
alongside the FIT DTS test files. Drop the 340_ prefix from files that
had it. Update the Makefile and all ftest.py references.
Signed-off-by: Simon Glass <simon.glass@canonical.com>
0a806c3eb6