Revert "Disable AVR until we get some warning resolved"

This reverts commit c7556244d2fcf7c7b360fb9500f08a11940a88ec.
diff --git a/testlist/avr-mips-riscv-x86-xtensa.dat b/testlist/avr-mips-riscv-x86-xtensa.dat
index f599237..8096ae9 100644
--- a/testlist/avr-mips-riscv-x86-xtensa.dat
+++ b/testlist/avr-mips-riscv-x86-xtensa.dat
@@ -1,9 +1,9 @@
 # We do not have a toolchain for avr32 outside of Microchip login wall.
 # The work was never upstreamed to GCC.
 
-#/avr
-#-avr32dev1:nsh
-#-avr32dev1:ostest
+/avr
+-avr32dev1:nsh
+-avr32dev1:ostest
 
 # PINGUINOL toolchain doesn't provide macOS binaries
 # with the same name