gem5/gem5-m5ops: Drop uneeded package inherit

package is always inheritted by the base classes so the recipe does not
need to do this. This became an error with recent bitbake changes, fix
things by removing it.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-gem5/recipes-devtools/gem5/gem5-m5ops_20.bb

@@ -1,5 +1,5 @@
 require gem5-source_20.inc
-inherit scons package
+inherit scons
 
 HOMEPAGE = "https://www.gem5.org/documentation/general_docs/m5ops"
 SUMMARY = "m5ops provide pseudo-instructions to trigger gem5 functionality"