[netdrvr] ne: Use CONFIG_MACH_TX49XX

After some cleanups in arch/mips area, now MACH_TX49XX is selected for
both TOSHIBA_RBTX4927 and TOSHIBA_RBTX4938.  Fold these two conditions
to one.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/drivers/net/ne.c b/drivers/net/ne.c
index 42443d6..fa3ceca 100644
--- a/drivers/net/ne.c
+++ b/drivers/net/ne.c
@@ -118,7 +118,7 @@
     {"E-LAN100", "E-LAN200", {0x00, 0x00, 0x5d}}, /* Broken ne1000 clones */
     {"PCM-4823", "PCM-4823", {0x00, 0xc0, 0x6c}}, /* Broken Advantech MoBo */
     {"REALTEK", "RTL8019", {0x00, 0x00, 0xe8}}, /* no-name with Realtek chip */
-#if defined(CONFIG_TOSHIBA_RBTX4927) || defined(CONFIG_TOSHIBA_RBTX4938)
+#ifdef CONFIG_MACH_TX49XX
     {"RBHMA4X00-RTL8019", "RBHMA4X00/RTL8019", {0x00, 0x60, 0x0a}},  /* Toshiba built-in */
 #endif
     {"LCS-8834", "LCS-8836", {0x04, 0x04, 0x37}}, /* ShinyNet (SET) */
@@ -142,7 +142,7 @@
 #if defined(CONFIG_PLAT_MAPPI)
 #  define DCR_VAL 0x4b
 #elif defined(CONFIG_PLAT_OAKS32R)  || \
-   defined(CONFIG_TOSHIBA_RBTX4927) || defined(CONFIG_TOSHIBA_RBTX4938)
+   defined(CONFIG_MACH_TX49XX)
 #  define DCR_VAL 0x48		/* 8-bit mode */
 #else
 #  define DCR_VAL 0x49