arm: aspeed: Remove <common.h> and add needed includes

Remove <common.h> from all mach-aspeed files and when needed add missing
include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
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Cc: Ryan Chen <ryan_chen@aspeedtech.com>
Cc: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Cc: Aspeed BMC SW team <BMC-SW@aspeedtech.com>
Cc: Joel Stanley <joel@jms.id.au>