arduino_101: disable some additional options

We won't need the GPIO, timer, or pinmux drivers for
functioning asa bootloader, and some extra exception
debug info has been disabled.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
diff --git a/boot/zephyr/arduino_101.conf b/boot/zephyr/arduino_101.conf
index b58b0d9..ae50df8 100644
--- a/boot/zephyr/arduino_101.conf
+++ b/boot/zephyr/arduino_101.conf
@@ -2,3 +2,7 @@
 CONFIG_TEXT_SECTION_OFFSET=0x30
 CONFIG_ROM_SIZE=64
 CONFIG_SOC_FLASH_QMSI=y
+CONFIG_GPIO_QMSI=n
+CONFIG_PINMUX_QMSI=n
+CONFIG_EXCEPTION_DEBUG=n
+CONFIG_SYS_CLOCK_TICKS_PER_SEC=0