yocto-first-build-stm32: update paths

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

labs/yocto-first-build-stm32/yocto-first-build-stm32.tex

@@ -35,7 +35,8 @@ \section{Download Yocto}
 \begin{verbatim}
 git clone -b dunfell https://git.openembedded.org/meta-openembedded
 git clone https://github.com/STMicroelectronics/meta-st-stm32mp
-git checkout -b dunfell a95cc1ec39b60a1dc50d0902c91675935959e6d2
+cd meta-st-stm32mp
+git checkout a95cc1ec39b60a1dc50d0902c91675935959e6d2
 \end{verbatim}
 
 \section{Set up the build environment}
@@ -81,13 +82,13 @@ \section{Set up the SD card}
 Execute it:
 \begin{verbatim}
 sudo ./create_sdcard_from_flashlayout.sh \
-../flashlayout_core-image-minimal/trusted/FlashLayout_sdcard_stm32mp157d-dk1-basic.tsv
+../flashlayout_core-image-minimal/trusted/FlashLayout_sdcard_stm32mp157d-dk1-trusted.tsv
 \end{verbatim}
 
 Flash the SD card with that image:
 \begin{verbatim}
 umount /dev/mmcblk0p*
-sudo dd if=../flashlayout_core-image-minimal_FlashLayout_sdcard_stm32mp157d-dk1-basic.raw  \
+sudo dd if=../FlashLayout_sdcard_stm32mp157d-dk1-trusted.raw  \
 of=/dev/mmcblk0 bs=8M conv=fdatasync status=progress
 \end{verbatim}