staging: sm750fb: Fix typo in comment

Fixing typo in word 'and'.
Signed-off-by: NGabriela Bittencourt <gabrielabittencourt00@gmail.com>
Acked-by: NJulia Lawall <julia.lawall@lip6.fr>
Link: https://lore.kernel.org/r/20191029232207.4113-2-gabrielabittencourt00@gmail.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/sm750_accel.c

@@ -224,7 +224,7 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 
 	/*
 	 * Note:
-	 * DE_FOREGROUND are DE_BACKGROUND are don't care.
+	 * DE_FOREGROUND and DE_BACKGROUND are don't care.
 	 * DE_COLOR_COMPARE and DE_COLOR_COMPARE_MAKS
 	 * are set by set deSetTransparency().
 	 */