poweprc/85xx: add QMan frequency info and fdt fixup.

Starting from QMan3.0, the QMan clock cycle needs be exposed so that the kernel
driver can use it to calculate the shaper prescaler and rate.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c
index 8a8f317..801ee07 100644
--- a/arch/powerpc/cpu/mpc85xx/speed.c
+++ b/arch/powerpc/cpu/mpc85xx/speed.c
@@ -167,6 +167,10 @@
 	}
 #endif
 
+#ifdef CONFIG_SYS_DPAA_QBMAN
+	sysInfo->freqQMAN = sysInfo->freqSystemBus / 2;
+#endif
+
 #ifdef CONFIG_SYS_DPAA_FMAN
 	switch ((rcw_tmp & FM1_CLK_SEL) >> FM1_CLK_SHIFT) {
 	case 1: