drm/panic: Remove space before "!" in panic message

There is no space between the last word, and the punctuation mark in
English.
Suggested-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240807134902.458669-2-jfalempe@redhat.com

drivers/gpu/drm/drm_panic.c

@@ -78,7 +78,7 @@ struct drm_panic_line {
 #define PANIC_LINE(s) {.len = sizeof(s) - 1, .txt = s}
 
 static struct drm_panic_line panic_msg[] = {
-	PANIC_LINE("KERNEL PANIC !"),
+	PANIC_LINE("KERNEL PANIC!"),
 	PANIC_LINE(""),
 	PANIC_LINE("Please reboot your computer."),
 };