board: ti: *-cfg.yaml: Adhere to yamllint rules

Clean up all configuration files to adhere to yamllint rules.

Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
[trini: Update more yaml files added since this was posted]
Signed-off-by: Tom Rini <trini@konsulko.com>
Suggested-by: Nishanth Menon <nm@ti.com>
41 files changed