libc: Use select REQUIRES_FULL_LIBC instead of select NEWLIB_LIBC

Changed select NEWLIB_LIBC to select REQUIRES_FULL_LIBC

Signed-off-by: Jan Van Winkel <jan.van_winkel@dxplore.eu>
diff --git a/modules/Kconfig.simplelink b/modules/Kconfig.simplelink
index 6f386e8..8fa3bba 100644
--- a/modules/Kconfig.simplelink
+++ b/modules/Kconfig.simplelink
@@ -4,14 +4,15 @@
 	bool
 
 # Notes:
-# SimpleLink drivers require types (stdint.h) from NEWLIB_LIBC
+# SimpleLink drivers require types (stdint.h) from c library which is not
+# provided by minimal lbc
 # Selecting ERRNO lets host driver use Zephyr's __errno
 # Selecting PTHREAD_IPC and POSIX_API are needed to build the host driver
 config SIMPLELINK_HOST_DRIVER
 	bool "Build the SimpleLink WiFi Host Driver"
 	depends on HAS_CC3220SDK
 	depends on MULTITHREADING
-	select NEWLIB_LIBC
+	select REQUIRES_FULL_LIBC
 	select ERRNO
 	select PTHREAD_IPC
 	select POSIX_CLOCK