tcmode-default.inc: bump LINUXLIBCVERSION to 4.14%

* linux-libc-headers were updated without updating PREFERRED_VERSION causing
following messages being shown in every single build:
NOTE: preferred version 4.12% of nativesdk-linux-libc-headers not available (for item nativesdk-linux-libc-headers)
NOTE: versions of nativesdk-linux-libc-headers available: 4.14.13
NOTE: preferred version 4.12% of linux-libc-headers not available (for item linux-libc-headers)
NOTE: versions of linux-libc-headers available: 4.14.13
NOTE: preferred version 4.12% of linux-libc-headers not available (for item linux-libc-headers-dev)
NOTE: versions of linux-libc-headers available: 4.14.13
NOTE: preferred version 4.12% of nativesdk-linux-libc-headers not available (for item nativesdk-linux-libc-headers-dev)

---
 meta/conf/distro/include/tcmode-default.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 1787a8248d..852ac3c7b4 100644
@@ -27,7 +27,7 @@ SDKGCCVERSION ?= "${GCCVERSION}"
 BINUVERSION ?= "2.29%"
 GDBVERSION ?= "8.0%"
 GLIBCVERSION ?= "2.26%"
-LINUXLIBCVERSION ?= "4.12%"
+LINUXLIBCVERSION ?= "4.14%"
 
 PREFERRED_VERSION_gcc ?= "${GCCVERSION}"
 PREFERRED_VERSION_gcc-cross-${TARGET_ARCH} ?= "${GCCVERSION}"

2.15.1