Fix compiler warning
Fix compiler warning

The same function iasecc_sm_external_authentication() was declared in
two different .h files.

In file included from ../../src/libopensc/iasecc.h:27:0,
                 from sm-card-iasecc.c:44:
../../src/libopensc/iasecc-sdo.h:324:5: warning: redundant redeclaration of `iasecc_sm_external_authentication' [-Wredundant-decls]
In file included from ../../src/libopensc/opensc.h:44:0,
                 from sm-card-iasecc.c:40:
../../src/libopensc/sm.h:352:5: note: previous declaration of `iasecc_sm_external_authentication' was here

marschap/pkg-opensc,CardContact/OpenSC,fabled/OpenSC,carlhoerberg/OpenSC,kasparsd/opensc-latvia-id,Jakuje/OpenSC,adminmt/OpenSC,AktivCo/OpenSC,dirkx/OpenSC.tokend,hongquan/OpenSC-main,viktorTarasov/OpenSC-SM,frankmorgner/OpenSC,dirkx/OpenSC.tokend,ieugen/OpenSC,CardContact/OpenSC,kasparsd/opensc-latvia-id,marschap/pkg-opensc,hongquan/OpenSC-main,dirkx/OpenSC,0x7678/OpenSC,nmav/OpenSC,dengert/OpenSC,frankmorgner/OpenSC,metsma/OpenSC,nmav/OpenSC,martinpaljak/OpenSC,jpki/OpenSC,marschap/pkg-opensc,financeX/OpenSC,l1k/OpenSC,dirkx/OpenSC.tokend,financeX/OpenSC,carlhoerberg/OpenSC,mtrojnar/OpenSC,dengert/OpenSC,kasparsd/opensc-latvia-id,adminmt/OpenSC,jpki/OpenSC,frankmorgner/OpenSC,gemini/OpenSC,OpenSC/OpenSC,philipWendland/OpenSC,germanblanco/OpenSC,ieugen/OpenSC,tidatida/OpenSC,ieugen/OpenSC,0x7678/OpenSC,metsma/OpenSC,OpenSC/OpenSC,velter/OpenSC,LudovicRousseau/OpenSC,gemini/OpenSC,fabled/OpenSC,kasparsd/opensc-latvia-id,adminmt/OpenSC,germanblanco/OpenSC,fabled/OpenSC,viktorTarasov/OpenSC-SM,dirkx/OpenSC.tokend,tidatida/OpenSC,UIKit0/OpenSC,carlhoerberg/OpenSC,Jakuje/OpenSC,dirkx/OpenSC,mouse07410/OpenSC,rickyepoderi/OpenSC,Jakuje/OpenSC,carlhoerberg/OpenSC,UIKit0/OpenSC,l1k/OpenSC,financeX/OpenSC,dirkx/OpenSC,0x7678/OpenSC,Jakuje/OpenSC,aobaid/OpenSC,UIKit0/OpenSC,gemini/OpenSC,rickyepoderi/OpenSC,hhonkanen/OpenSC,dirkx/OpenSC,l1k/OpenSC,dirkx/OpenSC,mouse07410/OpenSC,0x7678/OpenSC,tidatida/OpenSC,dengert/OpenSC,ieugen/OpenSC,frankmorgner/OpenSC,tidatida/OpenSC,marschap/pkg-opensc,mouse07410/OpenSC,mtrojnar/OpenSC,hhonkanen/OpenSC,OpenSC/OpenSC,financeX/OpenSC,martinpaljak/OpenSC,CardContact/OpenSC,dirkx/OpenSC.tokend,aobaid/OpenSC,rickyepoderi/OpenSC,adminmt/OpenSC,aobaid/OpenSC,martinpaljak/OpenSC,hhonkanen/OpenSC,philipWendland/OpenSC,aobaid/OpenSC,dirkx/OpenSC.tokend,velter/OpenSC,AktivCo/OpenSC,UIKit0/OpenSC,fabled/OpenSC,LudovicRousseau/OpenSC,jpki/OpenSC,ieugen/OpenSC,viktorTarasov/OpenSC-SM,hongquan/OpenSC-main,carlhoerberg/OpenSC,nmav/OpenSC,mtrojnar/OpenSC,velter/OpenSC,financeX/OpenSC,germanblanco/OpenSC,velter/OpenSC,AktivCo/OpenSC,LudovicRousseau/OpenSC,metsma/OpenSC,philipWendland/OpenSC