staging: rtl8723bs: include: Fix spelling mistake in rtw_xmit.h

This patch fixes spelling mistake to increase code readability
and searching.

Signed-off-by: Roshan Khatri <topofeverest8848@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/93a1b568ec96dea13dfc75232a08bbf42e270599.1725933169.git.topofeverest8848@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: roshank8848

drivers/staging/rtl8723bs/include/rtw_xmit.h

@@ -15,7 +15,7 @@
 
 #define XMITBUF_ALIGN_SZ 512
 
-/*  xmit extension buff defination */
+/*  xmit extension buff definition */
 #define MAX_XMIT_EXTBUF_SZ	(1536)
 #define NR_XMIT_EXTBUFF	(32)