Incorrect flashing tool requirement for EK-RA6M3G

Qt Creator has incorrect flashing tool requirement for EK-RA6M3G.

Renesas Flash Programmer is not able to flash the external QSPI flash memory for this board.

Correct tool is SEGGER J-Link ( https://www.segger.com/downloads/jlink/#J-LinkSoftwareAndDocumentationPack ).

Custom installation path can be set with environment variable JLINK_PATH .

Tool name:

Windows:

JLink.exe

Linux:

JLinkExe

 Default installation paths for the tool:

Windows:

%programfiles%/SEGGER/JLink
%programfiles(x86)%/SEGGER/JLink

Linux:

/opt/SEGGER/JLink