[PATCH] ARM: avoid cpuidle link warning

[Nick Desaulniers]

> Since commit 83109d5d5fba ("x86/build: Warn on orphan section placement"),


Might be better to use:
commit 5a17850e251a ("arm/build: Warn on orphan section placement")

Reviewed-by: Nick Desaulniers <ndesaulniers at google.com>