ARM: nomadik: configure for NO_HZ and HRTIMERS

This enables tickless idle (NO_HZ_IDLE) and high resolution
timers for the Nomadik.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/configs/nhk8815_defconfig

 # CONFIG_LOCALVERSION_AUTO is not set
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14