Silicon/SynQuacer: Drop dependency on NorFlashPlatformLib

Fip006Dxe is part of the SynQuacer platform, which is its only user, and
yet, it relies on NorFlashPlatformLib to carry the platform specific NOR
geometry. This library is tied to ArmPlatformPkg's NorFlashDxe, which
will be going away, so let's stop using it.

Since the abstraction serves no purpose here, let's just merge the
library with its only user.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Leif Lindholm <quic_llindhol@quicinc.com>