chg: change rootchain submitHeaderBlock interface (Mainnet v1 changes)

[jdkanani]

No description provided.

[codecov-io]

Codecov Report

Merging #538 (1a29222) into mainnet-backport (1d8aca3) will decrease coverage by 0.46%.
The diff coverage is n/a.

@@                 Coverage Diff                  @@
##           mainnet-backport     #538      +/-   ##
====================================================
- Coverage             73.46%   72.99%   -0.47%     
====================================================
  Files                    49       49              
  Lines                  3946     3411     -535     
====================================================
- Hits                   2899     2490     -409     
+ Misses                  828      703     -125     
+ Partials                219      218       -1     

Impacted Files	Coverage Δ
clerk/genesis.go	60.00% <0.00%> (-17.78%)	⬇️
checkpoint/module.go	31.64% <0.00%> (-5.50%)	⬇️
staking/genesis.go	68.42% <0.00%> (-5.50%)	⬇️
staking/module.go	41.07% <0.00%> (-4.61%)	⬇️
app/utils.go	50.00% <0.00%> (-4.39%)	⬇️
staking/keeper.go	62.04% <0.00%> (-4.13%)	⬇️
topup/keeper.go	78.87% <0.00%> (-3.89%)	⬇️
clerk/keeper.go	78.37% <0.00%> (-3.85%)	⬇️
checkpoint/keeper.go	79.81% <0.00%> (-3.39%)	⬇️
staking/querier.go	55.43% <0.00%> (-3.39%)	⬇️
... and 38 more

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[imyourm8]

LGTM