Kconfig: Introduce ARCH_WANTS_NO_INSTR and CC_HAS_NO_PROFILE_FN_ATTR

We don't want compiler instrumentation to touch noinstr functions,
which are annotated with the no_profile_instrument_function function
attribute. Add a Kconfig test for this and make GCOV depend on it, and
in the future, PGO.

If an architecture is using noinstr, it should denote that via this
Kconfig value. That makes Kconfigs that depend on noinstr able to express
dependencies in an architecturally agnostic way.

Cc: Masahiro Yamada <[email protected]>
Link: https://lore.kernel.org/lkml/[email protected]/
Link: https://lore.kernel.org/lkml/YMcssV%[email protected]/
Suggested-by: Nathan Chancellor <[email protected]>
Suggested-by: Peter Zijlstra <[email protected]>
Signed-off-by: Nick Desaulniers <[email protected]>
Reviewed-by: Peter Oberparleiter <[email protected]>
Reviewed-by: Nathan Chancellor <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Acked-by: Heiko Carstens <[email protected]>
Acked-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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