USB: ehci-fsl: Update ifdef check to work on 64-bit ppc

We need to use CONFIG_FSL_SOC_BOOKE instead of CONFIG_PPC_85xx as
CONFIG_PPC_85xx isn't defined when we build support for 64-bit embedded
FSL PPC SoCs.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ehci-fsl.c

@@ -313,7 +313,7 @@ static void ehci_fsl_usb_setup(struct ehci_hcd *ehci)
 	}
 
 	if (pdata->have_sysif_regs) {
-#ifdef CONFIG_PPC_85xx
+#ifdef CONFIG_FSL_SOC_BOOKE
 		out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x00000008);
 		out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000080);
 #else