Disable build-time module check on emu.

On emu some checks can be laxer like check for relocation range. Additionally
module loading in emu is rarely used. So skip this check rather than making
it laxer for all platforms. In ideal we may want to have slightly different
check for emu but for now this is good enough.

grub-core/genmod.sh.in

@@ -93,5 +93,7 @@ else
 	    -wd1106 -nu -nd $tmpfile.bin $tmpfile || exit 1
 	rm -f $name.bin
 fi
-./build-grub-module-verifier $tmpfile @target_cpu@
+if test x@platform@ != xemu; then
+    ./build-grub-module-verifier $tmpfile @target_cpu@
+fi
 mv $tmpfile $outfile