Codecoverage(libc/stdio): Modify TC's for few API's in stdio
Codecoverage(libc/stdio): Modify TC's for few API's in stdio

This patch covers left over use cases for API's namely:
memoutstream, meminstream, memsistream, memsostream,
rawinstream, rawoutstream, rawsistream, rawsostream,
stdinstream, stdoutstream, stdsistream, stdsostream
nullinstream, nulloutstream, zeroinstream

Signed-off-by: Vidisha Thapa <3d8bcdb46ae40344d12a5a0255e34cf386c7657a@samsung.com>

Samsung/TizenRT,heejin-kim/TizenRT,JeongJunSik/TizenRT,shivgarg/TizenRT,chanijjani/TizenRT,shivgarg/TizenRT,davidfather/TizenRT,heejin-kim/TizenRT,chanijjani/TizenRT,heejin-kim/TizenRT,Samsung/TizenRT,jsdosa/TizenRT,jeongchanKim/TizenRT,pillip8282/TizenRT,sunghan-chang/TizenRT,jeongarmy/TizenRT,chanijjani/TizenRT,jeongarmy/TizenRT,davidfather/TizenRT,JeonginKim/TizenRT,chanijjani/TizenRT,chanijjani/TizenRT,btheosam/TizenRT,lokeshbv/TizenRT,davidfather/TizenRT,JeongJunSik/TizenRT,btheosam/TizenRT,jsdosa/TizenRT,shivgarg/TizenRT,sunghan-chang/TizenRT,pillip8282/TizenRT,jsdosa/TizenRT,jeongchanKim/TizenRT,davidfather/TizenRT,jeongchanKim/TizenRT,an4967/TizenRT,lokeshbv/TizenRT,chanijjani/TizenRT,an4967/TizenRT,sunghan-chang/TizenRT,an4967/TizenRT,pillip8282/TizenRT,jsdosa/TizenRT,JeongJunSik/TizenRT,JeongJunSik/TizenRT,junmin-kim/TizenRT,Samsung/TizenRT,JeonginKim/TizenRT,Samsung/TizenRT,jeongarmy/TizenRT,heejin-kim/TizenRT,JeongJunSik/TizenRT,sunghan-chang/TizenRT,junmin-kim/TizenRT,shivgarg/TizenRT,davidfather/TizenRT,junmin-kim/TizenRT,davidfather/TizenRT,an4967/TizenRT,pillip8282/TizenRT,an4967/TizenRT,jsdosa/TizenRT,an4967/TizenRT,jsdosa/TizenRT,pillip8282/TizenRT,btheosam/TizenRT,lokeshbv/TizenRT,HONGCHAEHEE/TizenRT,pillip8282/TizenRT,jeongchanKim/TizenRT,jeongchanKim/TizenRT,lokeshbv/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,sunghan-chang/TizenRT,lokeshbv/TizenRT,btheosam/TizenRT,HONGCHAEHEE/TizenRT,JeongJunSik/TizenRT,HONGCHAEHEE/TizenRT,heejin-kim/TizenRT,an4967/TizenRT,btheosam/TizenRT,shivgarg/TizenRT,JeonginKim/TizenRT,jeongarmy/TizenRT,jsdosa/TizenRT,davidfather/TizenRT,btheosam/TizenRT,Samsung/TizenRT,jeongarmy/TizenRT,pillip8282/TizenRT,chanijjani/TizenRT,jeongarmy/TizenRT,jeongarmy/TizenRT,JeonginKim/TizenRT,jeongchanKim/TizenRT,HONGCHAEHEE/TizenRT,shivgarg/TizenRT,lokeshbv/TizenRT,Samsung/TizenRT,HONGCHAEHEE/TizenRT,HONGCHAEHEE/TizenRT,junmin-kim/TizenRT,jeongchanKim/TizenRT,junmin-kim/TizenRT,junmin-kim/TizenRT,heejin-kim/TizenRT,JeonginKim/TizenRT,Samsung/TizenRT,JeonginKim/TizenRT,junmin-kim/TizenRT