drivers: Renaming directory "802.15.4" into "ieee802154"

ieee802154 is a more relevant name. Applying the change in
include/drivers as well.

Change-Id: I7f7188ed0421045d7667303c375eeb8af1298b97
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>

drivers/Kconfig

@@ -21,7 +21,7 @@ menu "Device Drivers"
 
 source "drivers/bluetooth/Kconfig"
 
-source "drivers/802.15.4/Kconfig"
+source "drivers/ieee802154/Kconfig"
 
 source "drivers/console/Kconfig"
 

drivers/Makefile

@@ -17,7 +17,7 @@ obj-$(CONFIG_I2C) += i2c/
 obj-$(CONFIG_PWM) += pwm/
 obj-$(CONFIG_ADC) += adc/
 obj-$(CONFIG_ETHERNET) += ethernet/
-obj-$(CONFIG_NETWORKING_WITH_15_4) += 802.15.4/
+obj-$(CONFIG_NETWORKING_WITH_15_4) += ieee802154/
 obj-$(CONFIG_WATCHDOG) += watchdog/
 obj-$(CONFIG_RTC) += rtc/
 obj-$(CONFIG_CLOCK_CONTROL) += clock_control/

drivers/ieee802154/cc2520.c

@@ -45,7 +45,7 @@
 #include <init.h>
 #include <sections.h>
 
-#include <802.15.4/cc2520.h>
+#include <ieee802154/cc2520.h>
 
 #include <net/l2_buf.h>
 #include "packetbuf.h"