sysdev/kernel: building: Reword a bit the slide about the default con…

…figurations to make it more generic

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

slides/sysdev-kernel-building/sysdev-kernel-building.tex

@@ -148,16 +148,14 @@ \subsection{Kernel configuration}
      \end{itemize}
   \item Embedded platform case (at least on ARM 32 bit):
      \begin{itemize}
-	\item Default configuration files are available, usually for
-	  each CPU family.
-        \item They are stored in \code{arch/<arch>/configs/}, and are
-          just minimal \code{.config} files (only settings different
-          from default ones).
-        \item Run \code{make help} to find if one is available for your
-          platform
-        \item To load a default configuration file, just run\\
-          \code{make cpu_defconfig}
-        \item This will overwrite your existing \code{.config} file!
+       \item Default configurations stored in-tree as minimal
+         configuration files (only listing settings that are different
+         with the defaults) in \code{arch/<arch>/configs/}
+       \item \code{make help} will list the available configurations for
+         your platform
+       \item To load a default configuration file, just run
+         \code{make foo_defconfig} (will erase your current
+         \code{.config}!)
      \end{itemize}
   \end{itemize}
   Now, you can make configuration changes (\code{make menuconfig}...).