Clone repositories through https instead of git

The git protocol is deprecated.

Signed-off-by: Michael Opdenacker <[email protected]>

labs/preempt-rt-patch-download/preempt-rt-patch-download.tex

@@ -24,7 +24,7 @@ \section{Download Buildroot}
 Buildroot source code from its Git repository:
 
 \begin{bashinput}
-git clone git://git.busybox.net/buildroot
+git clone https://git.busybox.net/buildroot
 \end{bashinput}
 
 In case this is blocked on your network, you can download the Buildroot

labs/sysdev-u-boot-beagleplay/sysdev-u-boot-beagleplay.tex

@@ -256,7 +256,7 @@ \section{Get the TI firmware and create {\tt tiboot3.bin} image}
 
 \begin{bashinput}
 $ cd $HOME/__SESSION_NAME__-labs/bootloader
-$ git clone git://git.ti.com/processor-firmware/ti-linux-firmware.git
+$ git clone https://git.ti.com/cgit/processor-firmware/ti-linux-firmware
 $ cd ti-linux-firmware
 $ git checkout c126d3864b9faf725ff40e620049ab5d56dedc5b
 \end{bashinput}
@@ -269,7 +269,7 @@ \section{Get the TI firmware and create {\tt tiboot3.bin} image}
 Get \code{k3-image-gen},
 \begin{bashinput}
 $ cd ..
-$ git clone git://git.ti.com/k3-image-gen/k3-image-gen.git
+$ git clone https://git.ti.com/cgit/k3-image-gen/k3-image-gen
 $ cd k3-image-gen/
 $ git checkout 150f1956b4bdcba36e7dffc78a4342df602f8d6e
 \end{bashinput}

slides/sysdev-build-systems/sysdev-build-systems.tex

@@ -394,9 +394,9 @@ \subsection{Embedded Linux build systems}
   \begin{block}{Download {\em bitbake} and layers}
     {\footnotesize
 \begin{verbatim}
-  $ git clone git://git.openembedded.org/openembedded-core -b kirkstone
-  $ git clone git://git.openembedded.org/meta-openembedded -b kirkstone
-  $ git clone git://git.openembedded.org/bitbake -b 2.0
+  $ git clone https://git.openembedded.org/openembedded-core -b kirkstone
+  $ git clone https://git.openembedded.org/meta-openembedded -b kirkstone
+  $ git clone https://git.openembedded.org/bitbake -b 2.0
   $ git clone https://github.com/STMicroelectronics/meta-st-stm32mp.git -b kirkstone
 \end{verbatim}
     }