cpuidle: intel_idle: Drop redundant backslash at line end

mainline inclusion
from mainline-v5.18-rc1
commit 03eb6522
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I5BECY


CVE: NA

Intel-SIG: commit 03eb6522 cpuidle: intel_idle: Drop redundant
backslash at line end.
Backport intel_idle driver

--------------------------------

Drop a redundant backslash character at the end of a line in the
spr_cstates[] definition.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: yingbao jia <yingbao.jia@intel.com>
Signed-off-by: Jun Tian <jun.j.tian@intel.com>