staging: fsl-mc: Changed dev_info() calls to dev_dbg()

Changed dev_info() calls to dev_dbg() in
fsl_mc_allocator_probe/fsl_mc_allocator_remove, as they
are useful only for debugging.

Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>