init: fix LABEL=ARCHR boot failure + bump RTL8188EUS to current HEAD

The "Unable to find LABEL=ARCHR, powering off" wall on the freshly
flashed image traced back to a latent bug in the initramfs busybox
packaging that the boot.ini LABEL= migration (issue #34) made
deterministic.

busybox/package.mk
  The mount, umount and findfs applets are compiled into the init
  busybox (CONFIG_MOUNT/UMOUNT/FINDFS in config/busybox-init.conf),
  but no symlinks were ever installed for them. mount_common() in the
  init script calls `mount LABEL=... /flash` and
  `findfs LABEL=...` by bare name; without symlinks the shell can't
  find either command and the 15 retry loops silently exhaust to the
  power-off message. This bug also affected the previous
  /dev/mmcblk${devnum}p1 path: the string was never reaching the
  syscall through busybox.

  Adds:
    ln -sf /usr/bin/busybox ${INSTALL}/usr/bin/mount
    ln -sf /usr/bin/busybox ${INSTALL}/usr/bin/umount
    ln -sf /usr/bin/busybox ${INSTALL}/usr/sbin/findfs

  /usr/sbin/blkid is already shipped by util-linux as a real binary,
  no symlink needed for it.

busybox/scripts/init
  Exports PATH=/usr/sbin:/usr/bin:/sbin:/bin at the top so the bare
  blkid/findfs/mount calls in mount_common() resolve against
  /usr/sbin/blkid (util-linux real binary) and the new busybox
  symlinks. Without this, the busybox sh default PATH on aarch64
  built images is too narrow to find /usr/sbin tools.

RTL8188EUS/package.mk
  PKG_VERSION bumped from ec90af2b... (no longer on the remote) to
  af3bf004458f76b7aec33e9ba552cd382ed1f5c3, the current HEAD of the
  default v5.3.9 branch on aircrack-ng/rtl8188eus. The previous SHA
  failed at `get` time: `fatal: remote error: upload-pack: not our
  ref ec90af2b...`, blocking the whole image build.

projects/ArchR/packages/linux-drivers/RTL8188EUS/package.mk

@@ -2,7 +2,7 @@
 # Copyright (C) 2026-present ArchR (https://github.com/archr-linux/Arch-R)
 
 PKG_NAME="RTL8188EUS"
-PKG_VERSION="ec90af2b3f2f7d2956c7c25d0bbeb536e9ed5f9d"
+PKG_VERSION="af3bf004458f76b7aec33e9ba552cd382ed1f5c3"
 PKG_LICENSE="GPL"
 PKG_SITE="https://github.com/aircrack-ng/rtl8188eus"
 PKG_URL="${PKG_SITE}.git"

projects/ArchR/packages/sysutils/busybox/package.mk

@@ -210,6 +210,17 @@ makeinstall_init() {
 
   mkdir -p ${INSTALL}/usr/sbin
     ln -sf /usr/bin/busybox ${INSTALL}/usr/sbin/blockdev
+    # The init script in scripts/init calls `mount`, `umount`, and
+    # `findfs` by bare name (not `busybox mount`). All three applets
+    # are compiled into the init busybox (CONFIG_MOUNT/UMOUNT/FINDFS
+    # in config/busybox-init.conf), but without symlinks they cannot
+    # be invoked at all: mount_common() and findfs-based resolution
+    # silently fail every loop iteration and the user sees
+    # "Unable to find LABEL=..., powering off" after 15s of retries.
+    # This is what bit issue #34's LABEL= boot.ini change.
+    ln -sf /usr/bin/busybox ${INSTALL}/usr/bin/mount
+    ln -sf /usr/bin/busybox ${INSTALL}/usr/bin/umount
+    ln -sf /usr/bin/busybox ${INSTALL}/usr/sbin/findfs
 
   mkdir -p ${INSTALL}/etc
     touch ${INSTALL}/etc/fstab

projects/ArchR/packages/sysutils/busybox/scripts/init

@@ -8,6 +8,12 @@
 # Copyright (C) 2018-present Team CoreELEC (https://coreelec.org)
 # Copyright (C) 2023 JELOS (https://github.com/JustEnoughLinuxOS)
 
+# Explicit PATH so the bare-name `mount`, `umount`, `findfs`, `blkid`
+# calls in mount_common() always resolve. /usr/sbin is where util-linux
+# blkid lives; /usr/bin is where the busybox-applet symlinks for the
+# other three live (see makeinstall_init in busybox/package.mk).
+export PATH=/usr/sbin:/usr/bin:/sbin:/bin
+
 # create directories
 /usr/bin/busybox mkdir -p /dev
 /usr/bin/busybox mkdir -p /proc