[ARM] Fix ARM AACI ALSA driver

  CC [M]  sound/arm/aaci.o
sound/arm/aaci.c:729: error: parse error before '*' token
sound/arm/aaci.c:731: warning: function declaration isn't a prototype
...
sound/arm/aaci.c:786: error: parse error before '*' token
sound/arm/aaci.c:786: warning: function declaration isn't a prototype
...
sound/arm/aaci.c:827: error: parse error before '*' token
sound/arm/aaci.c:828: warning: function declaration isn't a prototype
...
sound/arm/aaci.c:845: error: parse error before "aaci_capture_ops"
sound/arm/aaci.c:845: warning: type defaults to `int' in declaration of `aaci_capture_ops'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>