docs/website: add current LTS sponsors

Add the LTS sponsors who engaged already for 2025: EVS, Open Home
Foundation, and Sense Labs. There is one more sponsor but they prefer to
remain anonymous.

For Open Home Foundation, we can reuse the existing logo. For the other
two, add their logo.

Add a new class panel-lts-sponsor for sizing the panels. It is different
from panel-sponsor because there doesn't need to be space for an
explanation of what type of sponsorship is done, we just need to have
space for the company name. So the minimum height is 200px instead of
350px.

Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit b111e07fd5ac90e3403fc2f7a4944bffbb5a518f)

docs/website/css/main.css

@@ -168,6 +168,12 @@ i {
 	text-justify: inter-word;
 }
 
+.panel-lts-sponsor {
+	min-height: 200px;
+	text-align: justify;
+	text-justify: inter-word;
+}
+
 @media (min-width: 768px) and (max-width: 991px) {
 	.navbar-collapse.collapse {
 		display: none !important;

docs/website/sponsors.html

@@ -9,11 +9,62 @@
     <div class="panel-body">
       <p>The maintenance of the Long Term Support branch of Buildroot is
          possible thanks to the sponsors of the
-         <a href="https://mind.be/buildroot-lts">Buildroot LTS Sponsoring
+         <a href="https://mind.be/buildroot-lts">Buildroot LTS Sponsorship
          Program</a>.</p>
-      <p>When the Buildroot LTS Sponsoring program will be operational
-         later in 2024, those sponsors will be mentioned here.</p>
-      </div>
+    </div>
+    <div class="panel-body">
+      <h3>Gold Sponsors</h3>
+
+	<div class="col-sm-4">
+	  <div class="panel panel-default panel-lts-sponsor">
+	    <div class="panel-body">
+	      <div class="col-sm-12" style="height: 150px;">
+		<a href="https://evs.com">
+		  <img class="img-responsive center-block" src="images/evs-logo.png"/>
+		</a>
+	      </div>
+	      <div class="col-sm-12">
+		<a href="http://evs.com">EVS Broadcast Equipment</a>
+	      </div>
+	    </div>
+	  </div>
+	</div>
+	<div class="col-sm-4">
+	  <div class="panel panel-default panel-lts-sponsor">
+	    <div class="panel-body">
+	      <div class="col-sm-12" style="height: 150px;">
+		<a href="https://www.openhomefoundation.org/">
+		  <img class="img-responsive center-block" src="images/openhomefoundation-logo.png"/>
+		</a>
+	      </div>
+	      <div class="col-sm-12">
+		<a href="https://www.openhomefoundation.org">Open Home
+		Foundation</a>
+	    </div>
+	  </div>
+	</div>
+    </div>
+
+    </div>
+    <div class="panel-body">
+      <h3>Bronze Sponsors</h3>
+
+	<div class="col-sm-4">
+	  <div class="panel panel-default panel-lts-sponsor">
+	    <div class="panel-body">
+	      <div class="col-sm-12" style="height: 150px;">
+		<a href="https://www.sense.com">
+		  <img class="img-responsive center-block" style="width: 100%;" src="images/sense-logo.png"/>
+		</a>
+	      </div>
+	      <div class="col-sm-12">
+		<a href="https://www.sense.com">Sense Labs</a>
+	      </div>
+	    </div>
+	  </div>
+	</div>
+
+    </div>
     </div>
 
     <div class="panel panel-primary">