We are doing math of two 32-bit numbers and assigning into a 64-bit
result. Add explicit cast of one of the values being multipled to get
explicit promotion.
Fixes: #13883
Coverity CID: 190930
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Added sample to show disk access and FS api with
Fat filesystem and SDHC driver. Tested working with
nrf52840 (blip).
Signed-off-by: Tavish Naruka <docuser@docs.electronut.in>
