drivers/qe: Change QE RISC ALLOCATION to support 4 RISCs

Also define the QE_RISC_ALLOCATION_RISCs to MACROs instead of using enum, and
define MAX_QE_RISC for QE based silicons.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

include/asm-ppc/immap_qe.h

@@ -607,4 +607,12 @@ extern qe_map_t *qe_immr;
 #define QE_MURAM_SIZE		0x4000UL
 #endif
 
+#if defined(CONFIG_MPC8323)
+#define MAX_QE_RISC     1
+#elif defined(CONFIG_MPC8569)
+#define MAX_QE_RISC     4
+#else
+#define MAX_QE_RISC	2
+#endif
+
 #endif				/* __IMMAP_QE_H__ */