You are using image Fujitsu-VMvisor-Installer-6.5-5969303-v411-1
As I can see the version of driver on image is still same you have, so in this case this will not be upgraded as this is the up to date version in image you are using.
You can also see the following entries in log :
2018-02-25T04:10:25Z esxupdate: 70083: imageprofile: DEBUG: VIB VMW_bootbank_i40en_1.3.1-5vmw.650.1.26.5969303 is being removed from ImageProfile (Updated) Fujitsu-VMvisor-Installer-6.5-5969303-v411-1
There are repos for Dell & HP which you can add in VUM to get custom vibs updates but I don't think there's any for fujitsu. In that case if you find any driver/vib updated which is not included and download from fujitsu or that vendor's site, do your investigation, check for feedback and updates and if you find it correct > upload to VUM and update.
Dell: http://vmwaredepot.dell.com/index.xml
HP: http://vibsdepot.hp.com/index.xml