staging: rtl8723bs: propagate errno through hal xmit path

staging: rtl8723bs: propagate errno through hal xmit path

Propagate errno values from rtl8723bs_hal_xmitframe_enqueue()
through rtw_hal_xmitframe_enqueue() by returning the error code
directly.

Update rtw_hal_xmit() to explicitly map the boolean return
value of rtl8723bs_hal_xmit() to _SUCCESS/_FAIL, clarifying
the return semantics at the HAL boundary.

None of the callers of rtw_hal_xmitframe_enqueue() check the
return value, so they do not need to be updated. This change
does not affect runtime behavior.

Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
Link: https://patch.msgid.link/20260514100708.25031-6-dennylin0707@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>