The patch that adds the rtc-tools Makefile has been accepted
upstream, so update to the latest 2022.02 version and remove the
local Makefile patch.
Also, rename the recipe to reflect the new version.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>