Fix lookup_enum_spec() prototype
Fix lookup_enum_spec() prototype

A change introduced in c0072d16ddc7b52d2b2c3c53991f569dcac45b3a made the
compilation fail:
pkcs11-display.c:738:1: error: conflicting types for 'lookup_enum_spec'
pkcs11-display.h:64:13: note: previous declaration of 'lookup_enum_spec' was here

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