Bump buidlroot version to 2018.02.6

bsp/buildroot/package/rt-tests/Config.in

@@ -23,7 +23,6 @@ config BR2_PACKAGE_RT_TESTS
 
 	  http://rt.wiki.kernel.org
 
-
 comment "rt-tests may not work on MIPS with an external uClibc toolchain"
 	depends on BR2_PACKAGE_RT_TESTS
 	depends on BR2_TOOLCHAIN_EXTERNAL_UCLIBC

bsp/buildroot/package/rt-tests/rt-tests.mk

@@ -7,7 +7,7 @@
 RT_TESTS_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/rt-tests
 RT_TESTS_SOURCE = rt-tests-$(RT_TESTS_VERSION).tar.xz
 RT_TESTS_VERSION = 1.0
-RT_TESTS_LICENSE = GPLv2+
+RT_TESTS_LICENSE = GPL-2.0+
 RT_TESTS_LICENSE_FILES = COPYING
 
 ifeq ($(BR2_PACKAGE_PYTHON),y)
@@ -15,16 +15,16 @@ RT_TESTS_DEPENDENCIES = python
 endif
 
 define RT_TESTS_BUILD_CMDS
-	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)	\
-		CC="$(TARGET_CC)" 		\
-		CFLAGS="$(TARGET_CFLAGS)"	\
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) \
+		CC="$(TARGET_CC)" \
+		CFLAGS="$(TARGET_CFLAGS)" \
 		prefix=/usr
 endef
 
 define RT_TESTS_INSTALL_TARGET_CMDS
-	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)		\
-		DESTDIR="$(TARGET_DIR)" 		\
-		prefix=/usr 				\
+	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D) \
+		DESTDIR="$(TARGET_DIR)" \
+		prefix=/usr \
 		$(if $(BR2_PACKAGE_PYTHON),PYLIB=/usr/lib/python$(PYTHON_VERSION_MAJOR)/site-packages/,PYLIB="") \
 		install
 endef