QE/U-QE: Add U-QE support

Modify code to adapt to both u-qe and qe.

U_QE is a kind of cutted QE.
the differences between U_QE and QE
	1. UCC: U_QE supports 2 UCCs while QE supports up to 8 UCCs.
	2. IMMR: have different immr base addr.
	3. iopin: U_QE doesn't need to config iopin.

Signed-off-by: Zhao Qiang <B45475@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

arch/powerpc/cpu/mpc85xx/t1040_ids.c

@@ -46,6 +46,7 @@ struct liodn_id_table liodn_tbl[] = {
 	SET_DMA_LIODN(2, 227),
 
 	/* SET_NEXUS_LIODN(557), -- not yet implemented */
+	SET_QE_LIODN(559),
 };
 int liodn_tbl_sz = ARRAY_SIZE(liodn_tbl);