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: NZhao Qiang <B45475@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>