flash/stm32l4x: support STM32U5F/U5Gx devices

flash/stm32l4x: support STM32U5F/U5Gx devices

STM32U5F/U5Gx devices are similar to STM32U59/U5Ax devices
while at there update STM32U5xx revisions

Change-Id: I4f1c302cc91739a89cf4869401e9f5015dbc72b9
Signed-off-by: HAOUES Ahmed <ahmed.haoues@st.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8616
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>