arm64: cputype: Add C1-Premium definitions

arm64: cputype: Add C1-Premium definitions

Add cputype definitions for C1-Premium. These will be used for errata
detection in subsequent patches.

These values can be found in the C1-Premium TRM:

  https://developer.arm.com/documentation/109416/0100/

... in section A.5.1 ("MIDR_EL1, Main ID Register").

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>