Fix compiler warning: redefinition in extendedcommands.c

ITEM_APPLY_SDCARD is already defined in recovery_ui.h, fortunately
also as 1.

This suggestion comes from Phil3759.

Change-Id: I9ac370ca9640d61b6b96f60954d35f7aa458d75b
Merge "Fix compiler warning: redefinition in extendedcommands.c" into cm-10.1