mediatek: 5.15: re-enable arch timer on MT7623 as well

Re-enable arch timer also on MT7623, yet another time.

Signed-off-by: Daniel Golle <[email protected]>

target/linux/mediatek/mt7623/config-5.15

@@ -246,6 +246,7 @@ CONFIG_HARDIRQS_SW_RESEND=y
 CONFIG_HAS_DMA=y
 CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAVE_ARM_ARCH_TIMER=Y
 CONFIG_HAVE_SMP=y
 CONFIG_HDMI=y
 CONFIG_HID=y