STM32U37/U38x devices have 1Mb flash (split into pages of 4 Kb)
Note: add wait for the BSY bit to be cleared in FLASH_SR
Change-Id: I8208aa81951b9e2f7b0a6bbfce3f7c8ad0f78ade
Signed-off-by: HAOUES Ahmed <ahmed.haoues@st.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8874
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
