staging: rtl8723bs: Fix grammar error in comment.

Fix a grammatical error in the comment describing 'struct
rt_firmware_hdr'.
Signed-off-by: Quytelda Kahja <quytelda@tamalin.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8723bs/include/rtl8723b_hal.h

@@ -51,7 +51,7 @@ struct rt_firmware {
 	u8 *fw_buffer_sz;
 };
 
-/*  This structure must be cared byte-ordering */
+/* This structure must be carefully byte-ordered. */
 struct rt_firmware_hdr {
 	/*  8-byte alinment required */