Select HAS_PERSISTENT_CLOCK on x86 to simplify RTC options
and allow the compiler to remove unused code.
Signed-off-by: John Stultz <john.stultz@linaro.org>
select GENERIC_STRNLEN_USER
select HAVE_RCU_USER_QS if X86_64
select HAVE_IRQ_TIME_ACCOUNTING
select GENERIC_STRNLEN_USER
select HAVE_RCU_USER_QS if X86_64
select HAVE_IRQ_TIME_ACCOUNTING
+ select HAS_PERSISTENT_CLOCK
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select MODULES_USE_ELF_REL if X86_32
select GENERIC_KERNEL_THREAD
select GENERIC_KERNEL_EXECVE
select MODULES_USE_ELF_REL if X86_32