disable cpu wait support for bcm4710 (suggested in #1641)

SVN-Revision: 7755

target/linux/brcm47xx-2.6/patches-2.6.22/170-cpu_wait.patch

@@ -2,12 +2,11 @@ Index: linux-2.6.22-rc4/arch/mips/kernel/cpu-probe.c
 ===================================================================
 --- linux-2.6.22-rc4.orig/arch/mips/kernel/cpu-probe.c	2007-06-10 21:33:17.000000000 +0100
 +++ linux-2.6.22-rc4/arch/mips/kernel/cpu-probe.c	2007-06-10 21:33:22.000000000 +0100
-@@ -143,6 +143,8 @@
+@@ -143,6 +143,7 @@
  	case CPU_34K:
  	case CPU_74K:
   	case CPU_PR4450:
 +	case CPU_BCM3302:
-+	case CPU_BCM4710:
  		cpu_wait = r4k_wait;
  		break;
  	case CPU_TX49XX: