Revert "[camera] Fix sherlock ISP IRQ mode setting"

This reverts commit aaf80257f5b670d219042f2953c64689d4b5494c.
diff --git a/src/devices/board/drivers/sherlock/sherlock-camera.cc b/src/devices/board/drivers/sherlock/sherlock-camera.cc
index 3279014..2726888 100644
--- a/src/devices/board/drivers/sherlock/sherlock-camera.cc
+++ b/src/devices/board/drivers/sherlock/sherlock-camera.cc
@@ -147,7 +147,7 @@
 static const pbus_irq_t isp_irqs[] = {
     {
         .irq = T931_MALI_ISP_IRQ,
-        .mode = ZX_INTERRUPT_MODE_LEVEL_HIGH,
+        .mode = ZX_INTERRUPT_MODE_EDGE_HIGH,
     },
 };