ctl: card: use ALSACtl.ElemInfoCommon instead of ElemInfo

ctl: card: use ALSACtl.ElemInfoCommon instead of ElemInfo

Current implementation to handle element information is by ALSACtl.ElemInfo
gobject class, and uses some helper functions for setter/getter properties
of information. The implementation is not necessarily convenient to add
more type of element information since it requires to add such helper
functions per each.

This commit uses ALSACtl.ElemInfoCommon interface to handle any type of
element information in ALSACtl.Card for system call.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>