Merge branch 'move_init_rc' into 'main'

Move init.rc from redox repo

See merge request redox-os/base!44

aarch64-unknown-redox/init_drivers.rc

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+hwd
+pcid-spawner /etc/pcid/initfs.toml

aarch64-unknown-redox/init_drivers.rc.raspi3bp

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+bcm2835-sdhcid

init.rc

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+# Various daemons that relibc needs to function as well as a bunch of env vars
+# that should be set for every program.
+export PATH /bin
+export RUST_BACKTRACE 1
+rtcd
+nulld
+zerod
+randd
+
+# Logging
+logd
+stdio /scheme/log
+ramfs logging
+
+# Graphics infrastructure
+inputd
+vesad
+unset FRAMEBUFFER_ADDR FRAMEBUFFER_VIRT FRAMEBUFFER_WIDTH FRAMEBUFFER_HEIGHT FRAMEBUFFER_STRIDE
+#TODO: unset FRAMEBUFFER1 and beyond?
+fbbootlogd
+inputd -A 1
+fbcond 2
+
+# Live disk
+# Note: Needs to start before drivers to ensure it gets priority when redoxfs searches for disks
+lived
+
+# Drivers
+run /scheme/initfs/etc/init_drivers.rc
+unset RSDP_ADDR RSDP_SIZE
+
+# Mount rootfs
+redoxfs --uuid $REDOXFS_UUID file $REDOXFS_BLOCK
+unset REDOXFS_UUID REDOXFS_BLOCK REDOXFS_PASSWORD_ADDR REDOXFS_PASSWORD_SIZE
+
+# Exit initfs
+set-default-scheme file
+cd /
+export PATH /usr/bin
+run.d /usr/lib/init.d /etc/init.d

init_drivers.rc

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+ps2d us
+hwd
+pcid-spawner /etc/pcid/initfs.toml