RDKEMW-20764 : Changes to support Hash Equivalence

[h1712]

Description
Reason for change : To avoid file permission change thus avoiding sstate sig validation error
Test procuedure : Build and verify with Hash equivalence enabled
Risk: Low

Test results : https://ccp.sys.comcast.net/browse/RDKOSS-961?focusedId=25655212&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-25655212
Rootfs verification :
https://ccp.sys.comcast.net/browse/RDKOSS-961?focusedId=25677797&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-25677797
DOD : https://ccp.sys.comcast.net/browse/RDKEMW-20764?focusedId=25680183&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-25680183

[svc-rdkeportal01]

CCI-Build-Verified +1
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[svc-rdkeportal01]

CCI-Test-Verified -1
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[svc-rdkeportal01]

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[svc-rdkeportal01]

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[svc-rdkeportal01]

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[svc-rdkeportal01]

CCI-Test-Verified +1
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