refactor(stm32mp1): print reset reason at a lower log level

The reset reason is important information that should be printed even at
the NOTICE log level.

Change-Id: Ic0a2ae68d21c7f63932a28fe390cf98f18dc776c
Signed-off-by: Maxime Méré <maxime.mere@foss.st.com>
1 file changed