sh: HS7751RVoIP board updates.

Various cleanups for HS7751RVoIP. Mostly just getting
rid of the old mach.c and splitting codec configuration
in to its own Kconfig.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 1a0db1d..cbf0d527 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -400,7 +400,7 @@
 
 endmenu
 
-#source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
+source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
 
 #source "arch/sh/boards/renesas/rts7751r2d/Kconfig"