drm/tiny: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/tiny/bochs.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/tiny/cirrus.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/tiny/gm12u320.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240609-md-drivers-gpu-drm-tiny-v1-1-6905fe4ada50@quicinc.com

drivers/gpu/drm/tiny/bochs.c

@@ -733,4 +733,5 @@ drm_module_pci_driver_if_modeset(bochs_pci_driver, bochs_modeset);
 
 MODULE_DEVICE_TABLE(pci, bochs_pci_tbl);
 MODULE_AUTHOR("Gerd Hoffmann <kraxel@redhat.com>");
+MODULE_DESCRIPTION("DRM Support for bochs dispi vga interface (qemu stdvga)");
 MODULE_LICENSE("GPL");

drivers/gpu/drm/tiny/cirrus.c

@@ -760,4 +760,5 @@ static struct pci_driver cirrus_pci_driver = {
 drm_module_pci_driver(cirrus_pci_driver)
 
 MODULE_DEVICE_TABLE(pci, pciidlist);
+MODULE_DESCRIPTION("Cirrus driver for QEMU emulated device");
 MODULE_LICENSE("GPL");

drivers/gpu/drm/tiny/gm12u320.c

@@ -755,4 +755,5 @@ static struct usb_driver gm12u320_usb_driver = {
 
 module_usb_driver(gm12u320_usb_driver);
 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_DESCRIPTION("GM12U320 driver for USB projectors");
 MODULE_LICENSE("GPL");