Revert "Move MC_PLL_BUCKET to under proc target"
Revert "Move MC_PLL_BUCKET to under proc target"

This reverts commit 3be8ac8bf14c8ac54e7c56404d99066b2ea81f58.

Attribute defined in p10_pervasive_attributes.xml

Change-Id: I210c4c3571e7b94ebf6e169b6b3ce72d1fabeb17
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/99507
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: Jenkins OP Build CI <e610bd72261d3c0a48f1e8ae36832ab00774d426@us.ibm.com>
Tested-by: FSP CI Jenkins <aa9e4d9ac7cd25905e9c0dd36d4150516e73dd86@us.ibm.com>
Tested-by: Jenkins Combined Simics CI <8312af3886dfc9bb930f549023677220805b137e@us.ibm.com>
Reviewed-by: Daniel M Crowell <912029ca9254ac7b5854e56910561d682e1fa2d0@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot