powerpc/mpc85xx: set clock-frequency for T4/B4 clockgen node

For T4/B4, the clockgen node compatible string is updated to version 2.
Add clock-frequency setting for this new version.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

arch/powerpc/cpu/mpc85xx/fdt.c

@@ -663,6 +663,8 @@ void ft_cpu_setup(void *blob, bd_t *bd)
 #ifdef CONFIG_FSL_CORENET
 	do_fixup_by_compat_u32(blob, "fsl,qoriq-clockgen-1.0",
 		"clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
+	do_fixup_by_compat_u32(blob, "fsl,qoriq-clockgen-2",
+		"clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
 	do_fixup_by_compat_u32(blob, "fsl,mpic",
 		"clock-frequency", get_bus_freq(0)/2, 1);
 #else