Add m1n1-aurora and the silent uboot-asahi for Apple Silicon, aarch64 and edge only

Ported from the asahi-quattro lane. Both are pinned by hand like
linux-aurora and restricted to aarch64 and the edge channel from their
first merge, since merging publishes. pkgrel sits one above the fork
lanes' builds so the same filename never carries two sets of bytes.

pkgbuilds/uboot-asahi/raspberrypi-Add-quirk-for-RPi5-2Gb-rev-1.0.patch

@@ -0,0 +1,32 @@
+From 72fd4fdb54721a31d2b4e9f95fdd3b3e398bb2c0 Mon Sep 17 00:00:00 2001
+From: Peter Robinson <pbrobinson@gmail.com>
+Date: Sun, 12 Apr 2026 01:14:12 +0100
+Subject: [PATCH] board/raspberrypi: Add quirk for RPi5 2Gb rev 1.0
+
+All 2Gb Raspberry Pi 5s use the BCM2712D0 silicon, but
+the early boards were still rev 1.0 so we need a quirk
+to ensure the correct device tree is used.
+
+Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
+---
+ board/raspberrypi/rpi/rpi.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
+index b0a1484c0fa..ff9cab6521b 100644
+--- a/board/raspberrypi/rpi/rpi.c
++++ b/board/raspberrypi/rpi/rpi.c
+@@ -371,6 +371,10 @@ static void set_fdtfile(void)
+ 	const char *fdtfile;
+ 	int rev = revision & 0x0f;
+ 
++	/* 2GB Pi 5B board rev 1.0 always has BCM2712D0 silicon */
++	if (revision == 0xb04170)
++		rev = 1;
++
+ 	if (env_get("fdtfile"))
+ 		return;
+ 
+-- 
+2.53.0
+