octeon: enable high-res timers

Helps with network stack performance

Signed-off-by: Felix Fietkau <nbd@nbd.name>

target/linux/octeon/config-4.9

@@ -142,7 +142,6 @@ CONFIG_HAVE_PERF_EVENTS=y
 CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
 CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
 CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
-# CONFIG_HIGH_RES_TIMERS is not set
 CONFIG_HOLES_IN_ZONE=y
 # CONFIG_HUGETLBFS is not set
 CONFIG_HW_HAS_PCI=y
@@ -240,7 +239,6 @@ CONFIG_RELAY=y
 CONFIG_RFS_ACCEL=y
 CONFIG_RPS=y
 CONFIG_SCHED_DEBUG=y
-# CONFIG_SCHED_HRTICK is not set
 # CONFIG_SCHED_INFO is not set
 CONFIG_SCSI=y
 CONFIG_SECCOMP=y