viafb: rename output devices

Now it looks like we finally know enough about the output devices to give
them proper names. As VIA_96 is often referred to as DVP0 rename it to
VIA_DVP0. As VIA_6C and VIA_93 seem to exist only on CLE266 and "replace"
DVP0 and DVP1 there rename them to VIA_LDVP0 and VIA_LDVP1 (L as legacy).
The proc names were changed accordingly which should be harmless as they
were just introduced and not beyond RFC state.
This patch should make things a bit more comfortable and less scary.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Andrew Morton <akpm@linux-foundation.org>
diff --git a/drivers/video/via/hw.h b/drivers/video/via/hw.h
index ad6f9b1..b764409 100644
--- a/drivers/video/via/hw.h
+++ b/drivers/video/via/hw.h
@@ -33,9 +33,9 @@
 #define viafb_write_reg_mask(i, p, d, m)	via_write_reg_mask(p, i, d, m)
 
 /* VIA output devices */
-#define VIA_6C		0x00000001
-#define VIA_93		0x00000002
-#define VIA_96		0x00000004
+#define VIA_LDVP0	0x00000001
+#define VIA_LDVP1	0x00000002
+#define VIA_DVP0	0x00000004
 #define VIA_CRT		0x00000010
 #define VIA_DVP1	0x00000020
 #define VIA_LVDS1	0x00000040