IASECC: proper pkcs15init of Algo_refs
IASECC: proper pkcs15init of Algo_refs

For some Private RSA Keys, their Algo_refs remain empty:
$ pkcs15-tool -k --verify-pin  --pin 1234
Using reader with a card: ACS ACR33U-A1 3SAM ICC Reader 00 00
Private RSA Key [CPS_PRIV_SIG]
	Object Flags   : [0x01], private
	Usage          : [0x200], nonRepudiation
	Access Flags   : [0x0D], sensitive, alwaysSensitive, neverExtract
	Algo_refs      : 0
	Access Rules   : pso_cds:01;
	ModLength      : 2048
	Key ref        : 129 (0x81)
	Native         : yes
	Path           : e828bd080f8025000001ff0010::
	Auth ID        : 01
	ID             : e828bd080f8025000001ff001001
	MD:guid        : e7aab727-f2af-e673-37bb-7d43867a6349

Private RSA Key [CPS_PRIV_AUT]
	Object Flags   : [0x07], private, modifiable
	Usage          : [0x06], decrypt, sign
	Access Flags   : [0x0D], sensitive, alwaysSensitive, neverExtract
	Algo_refs      : 6, 3, 4
	Access Rules   : pso_decrypt:01; int_auth:01;
	ModLength      : 2048
	Key ref        : 130 (0x82)
	Native         : yes
	Path           : e828bd080f8025000001ff0010::
	Auth ID        : 01
	ID             : e828bd080f8025000001ff001002
	MD:guid        : 2b6bf284-225c-80bc-8cbe-1c791db33543

Based on Usage : [0x200], nonRepudiation the SC_PKCS15_PRKEY_USAGE_NONREPUDIATION
may be set but not the SC_PKCS15_PRKEY_USAGE_SIGN so line 801 is never tested.

Having just SC_PKCS15_PRKEY_USAGE_NONREPUDIATION set and not doing anything does not
make any sense for any card.

Suggested-by: Doug Engert <fb26047ab7e41360650c31f51e4a1ab01892acdf@gmail.com>
Fix: issue #2270

mouse07410/OpenSC,philipWendland/OpenSC,fabled/OpenSC,dengert/OpenSC,dengert/OpenSC,metsma/OpenSC,mouse07410/OpenSC,frankmorgner/OpenSC,philipWendland/OpenSC,frankmorgner/OpenSC,frankmorgner/OpenSC,fabled/OpenSC,fabled/OpenSC,dengert/OpenSC,OpenSC/OpenSC,metsma/OpenSC,frankmorgner/OpenSC,LudovicRousseau/OpenSC,mouse07410/OpenSC,philipWendland/OpenSC,OpenSC/OpenSC,LudovicRousseau/OpenSC,metsma/OpenSC,LudovicRousseau/OpenSC,OpenSC/OpenSC,fabled/OpenSC