ibm_newemac: Fix EMACx_TRTR[TRT] bit shifts

The TRT bit shifts were reversed for EMAC4 and non-EMAC4 during the
port from ibm_emac to ibm_newemac. This patch corrects that error.
Signed-off-by: NDave Mitchell <dmitchell@appliedmicro.com>
Acked-by: NFeng Kan <fkan@appliedmicro.com>
Acked-by: NProdyut Hazarika <phazarika@appliedmicro.com>
Acked-by: NStefan Roese <sr@denx.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ibm_newemac/emac.h

@@ -263,8 +263,8 @@ struct emac_regs {
 
 
 /* EMACx_TRTR */
-#define EMAC_TRTR_SHIFT_EMAC4		27
-#define EMAC_TRTR_SHIFT			24
+#define EMAC_TRTR_SHIFT_EMAC4		24
+#define EMAC_TRTR_SHIFT		27
 
 /* EMAC specific TX descriptor control fields (write access) */
 #define EMAC_TX_CTRL_GFCS		0x0200