[ALSA] sound: cmipci.c fix shadowed variable warning

A temporary variable for each mixer element is used in an initialization
loop, use the name elem_id.

sound/pci/cmipci.c:2747:26: warning: symbol 'id' shadows an earlier one
sound/pci/cmipci.c:56:13: originally declared here

[tiwai - fixed a coding style issue as well]

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc sound/pci/cmipci.c
Simple merge