MAINTAINERS: Update LL TEMAC entry to Orphan

Since there's no alternate driver, change this entry from obsolete
to orphan.
Signed-off-by: Harini Katakam <harini.katakam@amd.com>
Link: https://lore.kernel.org/r/20231005131039.25881-1-harini.katakam@amd.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

MAINTAINERS

@@ -23688,7 +23688,7 @@ F:	drivers/gpio/gpio-zynq.c
 
 XILINX LL TEMAC ETHERNET DRIVER
 L:	netdev@vger.kernel.org
-S:	Obsolete
+S:	Orphan
 F:	drivers/net/ethernet/xilinx/ll_temac*
 
 XILINX PWM DRIVER