powerpc/fsl: ifc: sparse fixes

arch/powerpc/sysdev/fsl_ifc.c:66:38: warning: incorrect type in initializer (different base types)
arch/powerpc/sysdev/fsl_ifc.c:66:38:    expected restricted __be32 [usertype] cspr
arch/powerpc/sysdev/fsl_ifc.c:66:38:    got unsigned int
arch/powerpc/sysdev/fsl_ifc.c:67:21: warning: restricted __be32 degrades to integer
arch/powerpc/sysdev/fsl_ifc.c:67:39: warning: restricted __be32 degrades to integer

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>