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/uefi-enable-SetVariableRT-with-volotile-storage.patch

@@ -0,0 +1,33 @@
+From fd736dd720b29fa69a4bb87492f3f94dc6076996 Mon Sep 17 00:00:00 2001
+From: Peter Robinson <pbrobinson@gmail.com>
+Date: Tue, 25 Mar 2025 17:13:44 +0000
+Subject: [PATCH] efi: enable SetVariableRT with volotile storage
+
+Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
+---
+ lib/efi_loader/Kconfig | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
+index d4f6b56afaa..3e522131b01 100644
+--- a/lib/efi_loader/Kconfig
++++ b/lib/efi_loader/Kconfig
+@@ -108,6 +108,7 @@ choice
+ config EFI_VARIABLE_FILE_STORE
+ 	bool "Store non-volatile UEFI variables as file"
+ 	depends on FAT_WRITE
++	default y
+ 	help
+ 	  Select this option if you want non-volatile UEFI variables to be
+ 	  stored as file /ubootefi.var on the EFI system partition.
+@@ -115,6 +116,7 @@ config EFI_VARIABLE_FILE_STORE
+ config EFI_RT_VOLATILE_STORE
+ 	bool "Allow variable runtime services in volatile storage (e.g RAM)"
+ 	depends on EFI_VARIABLE_FILE_STORE
++	default y
+ 	help
+ 	  When EFI variables are stored on file we don't allow SetVariableRT,
+ 	  since the OS doesn't know how to write that file. At the same time
+-- 
+2.49.0
+