IFDHICCPresence(): check the value returned by CmdEscape() in the SCR331-DI contactless reader familly code.
IFDHICCPresence(): check the value returned by CmdEscape() in the
SCR331-DI contactless reader familly code.

Byg detected by using __attribute__((warn_unused_result)) also used as
__must_check by the Linux kernel


git-svn-id: d8b078d517c8be834637447f210d7177f0fa38d6@2122 0ce88b0d-b2fd-0310-8134-9614164e65ea

LudovicRousseau/CCID,hiranotaka/ccid-scr331-nttcom,hiranotaka/ccid-scr331-nttcom,LudovicRousseau/CCID,hiranotaka/ccid-scr331-nttcom,LudovicRousseau/CCID,hiranotaka/ccid-scr331-nttcom