powerpc/qe&cpm2: Avoid redefinitions in CPM2 and QE headers

struct mcc defined in both immap_qe.h and immap_cpm2.h, so they will
conflic when included in a single file. The mcc struct is easy to deal
with, since it isn't used in any driver (yet), so let's just rename QE
version to qe_mcc.

The ucb_ctlr is a bit trickier, since it is used by fsl_qe_udc driver,
and the driver supports both CPM and QE UDCs, plus the QE version is
used to form a bigger immap struct.

I don't want to touch too much of USB code in this series, so for now
let's just copy most generic version into the common cpm.h header,
later we'll create cpm_usb.h where we'll place common USB structs that
are used by QE/CPM UDC and QE Host drivers (FHCI).

And as for the structs in qe.h and cpm2.h, just prefix them with qe_
and cpm_.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/immap_cpm2.h b/arch/powerpc/include/asm/immap_cpm2.h
index d4f069b..7c64fda 100644
--- a/arch/powerpc/include/asm/immap_cpm2.h
+++ b/arch/powerpc/include/asm/immap_cpm2.h
@@ -549,7 +549,7 @@
 
 /* USB Controller.
 */
-typedef struct usb_ctlr {
+typedef struct cpm_usb_ctlr {
 	u8	usb_usmod;
 	u8	usb_usadr;
 	u8	usb_uscom;