Move just-added aureal-kmod from misc into audio, because it better belongs

there.

For those who missed decsription from previous commit:
Add aureal-kmod - a port to provide convinient way for building FreeBSD driver
for Aureal based soundcards. This driver could not be added to the base system
because it's uses binary-only Linux Vortex Core object modules.

The port supports 4-STABLE and 5-CURRENT, however 4-STABLE isn't tested, so
please report your mileage to me.

Suggested by:	alex

audio/Makefile

@@ -5,6 +5,7 @@
     SUBDIR += amp
     SUBDIR += ascd
     SUBDIR += aumix
+    SUBDIR += aureal-kmod
     SUBDIR += autozen
     SUBDIR += bladeenc
     SUBDIR += btc

misc/Makefile

@@ -21,7 +21,6 @@
     SUBDIR += ari-yahoo
     SUBDIR += asbutton
     SUBDIR += astrolog
-    SUBDIR += aureal-kmod
     SUBDIR += bb
     SUBDIR += bbjd
     SUBDIR += biblereader