ALSA: HDA: Rename "e-Mic" and "i-Mic" to "Mic" and "Internal Mic"

Change non-standard mic control names to standard control names
to clean up the namespace.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>