[PATCH 1/3] mm: make creation of the mm_kobj happen earlier than device_initcall

The use of __initcall is to be eventually replaced by choosing one from the prioritized groupings laid out in init.h header: pure_initcall 0 core_initcall 1 postcore_initcall 2 arch_initcall 3

[PATCH 1/3] mm: make creation of the mm_kobj happen earlier than device_initcall

The use of __initcall is to be eventually replaced by choosing one from the prioritized groupings laid out in init.h header: pure_initcall 0 core_initcall 1 postcore_initcall 2 arch_initcall 3