arm: imx-common: introduce back usec2ticks
This commit "2bb01482" do some clean up to use the code in lib/time.c. But usec2ticks is still being used by security related job ring code. Bring back the function to avoid build break when CONFIG_FSL_CAAM is defined. The computation logic has been changed, using 64-bit variable to ease the process, making it work on older (MX5) platforms. Signed-off-by:Peng Fan <van.freenix@gmail.com> Signed-off-by:
Troy Kisky <troy.kisky@boundarydevices.com> Signed-off-by:
Gary Bisson <gary.bisson@boundarydevices.com>
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