intel: agilex: Fix reliance on hard coded clock information

Extract clock information for UART, MMC & Watchdog from the clock manager

Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: I42d3d4ceeaf45788d457472f6ddcd3fe099f0133
5 files changed