Update i2ctool build shell script

guowenxue

2020-08-21 c8030debe80cfa22c50e2715070db15a68b3f93d

 3rdparty/i2ctool/build.sh

@@ -59,9 +59,8 @@
{
    SRC_NAME=i2c-tools-4.1
    PACK_SUFIX=tar.xz
    IMG_NAME=i2cdetect

    if [ -f ${PREFIX_PATH}/${IMG_NAME} ] ; then
    if [ -f ${PREFIX_PATH}/sbin/i2cdetect ] ; then
        msg_banner "$SRC_NAME already compile and installed"
        return 0;
    fi