Incorporating review comments

Author: Ashok Rao

.astyleignore

@@ -12,7 +12,6 @@
 ^features/lwipstack/lwip-sys
 ^features/mbedtls
 ^connectivity/nanostack/sal-stack-nanostack/source/Service_Libs/mdns/fnet
-^connectivity/nanostack/targets
 ^connectivity/nanostack/sal-stack-nanostack-eventloop
 ^storage/filesystem/fat/ChaN
 ^storage/filesystem/littlefs/littlefs/