drm/i915/guc: Remove usage of the deprecated ida_simple_xx() API

ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

Note that the upper limit of ida_simple_get() is exclusive, but the one of
ida_alloc_range() is inclusive. So a -1 has been added when needed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7108c1871c6cb08d403c4fa6534bc7e6de4cb23d.1705245316.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>