Bluetooth: host: Don't send slave conn param request if not needed
Bluetooth: host: Don't send slave conn param request if not needed

If master or application decided to switch connection parameters to
ones that meet pending parameters don't bother sending request
after 5 seconds timeout.

Signed-off-by: Szymon Janc <db186c297188f7acbbdc9bbd6aff2f45665bb42d@codecoup.pl>

finikorg/zephyr,galak/zephyr,ldts/zephyr,explora26/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr,explora26/zephyr,punitvara/zephyr,GiulianoFranchetto/zephyr,punitvara/zephyr,nashif/zephyr,nashif/zephyr,finikorg/zephyr,galak/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,explora26/zephyr,nashif/zephyr,Vudentz/zephyr,finikorg/zephyr,ldts/zephyr,zephyrproject-rtos/zephyr,GiulianoFranchetto/zephyr,nashif/zephyr,finikorg/zephyr,punitvara/zephyr,Vudentz/zephyr,explora26/zephyr,Vudentz/zephyr,ldts/zephyr,GiulianoFranchetto/zephyr,Vudentz/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,finikorg/zephyr,ldts/zephyr,GiulianoFranchetto/zephyr,explora26/zephyr,Vudentz/zephyr,ldts/zephyr,galak/zephyr