cim-schema-exper: fix host-user-contaminated

Fixed:
cim-schema-exper-2.39.0: cim-schema-exper: /cim-schema-exper/usr/share/mof/cimv2.39.0/Network/CIM_IPAddressRange.mof is owned by uid 15220, which is the same as the user running bitbake. This may be due to host contamination [host-user-contaminated]
cim-schema-final-2.40.0: cim-schema-final: /cim-schema-final/usr/share/mof/cimv2.40.0/Network/CIM_IPAddressRange.mof is owned by uid 15220, which is the same as the user running bitbake. This may be due to host contamination [host-user-contaminated]
lib32-cim-schema-exper-2.39.0: lib32-cim-schema-exper: /lib32-cim-schema-exper/usr/share/mof/cimv2.39.0/Network/CIM_IPAddressRange.mof is owned by uid 15220, which is the same as the user running bitbake. This may be due to host contamination [host-user-contaminated]
lib32-cim-schema-final-2.40.0: lib32-cim-schema-final: /lib32-cim-schema-final/usr/share/mof/cimv2.40.0/Network/CIM_IPAddressRange.mof is owned by uid 15220, which is the same as the user running bitbake. This may be due to host contamination [host-user-contaminated]

It uses cp -a to install the files, so fix the owner to root:root

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>