Tab5 ST7121 variant + fixes (#605)

Added the newest variant to the tab5, St7121.
Fixed variant detection reliability
Fixed tab5 camera WHO_AM_I failing sometimes
Fixed tab5 keyboard live rotation on boot and after stopping/starting lvgl

Drivers/st7121-module/source/module.cpp

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: Apache-2.0
+#include <tactility/driver.h>
+#include <tactility/module.h>
+
+extern "C" {
+
+extern Driver st7121_driver;
+
+static Driver* const st7121_drivers[] = {
+    &st7121_driver,
+    nullptr
+};
+
+Module st7121_module = {
+    .name = "st7121",
+    .drivers = st7121_drivers
+};
+
+} // extern "C"