Bump buidlroot version to 2018.02.6

bsp/buildroot/package/linux-tools/linux-tool-cpupower.mk.in

@@ -0,0 +1,41 @@
+################################################################################
+#
+# cpupower
+#
+################################################################################
+
+LINUX_TOOLS += cpupower
+
+CPUPOWER_DEPENDENCIES = pciutils $(TARGET_NLS_DEPENDENCIES)
+
+CPUPOWER_MAKE_OPTS = CROSS=$(TARGET_CROSS) \
+	CPUFREQ_BENCH=false \
+	NLS=false \
+	LDFLAGS=$(TARGET_NLS_LIBS) \
+	DEBUG=false
+
+define CPUPOWER_BUILD_CMDS
+	$(Q)if test ! -f $(LINUX_DIR)/tools/power/cpupower/Makefile ; then \
+		echo "Your kernel version is too old and does not have the cpupower tool." ; \
+		echo "At least kernel 3.4 must be used." ; \
+		exit 1 ; \
+	fi
+
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(LINUX_DIR)/tools \
+		$(CPUPOWER_MAKE_OPTS) \
+		cpupower
+endef
+
+define CPUPOWER_INSTALL_STAGING_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(LINUX_DIR)/tools \
+		$(CPUPOWER_MAKE_OPTS) \
+		DESTDIR=$(STAGING_DIR) \
+		cpupower_install
+endef
+
+define CPUPOWER_INSTALL_TARGET_CMDS
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(LINUX_DIR)/tools \
+		$(CPUPOWER_MAKE_OPTS) \
+		DESTDIR=$(TARGET_DIR) \
+		cpupower_install
+endef