soc/intel/common/fast_spi: implement spi_flash_ctrlr_protect_region()

In the fast spi support implement the callback for flash_protect().
This removes the need for having SOC_INTEL_COMMON_SPI_FLASH_PROTECT
Kconfig option as well spi_flash_get_fpr_info() and separate
spi_flash.[ch].

BUG=b:69614064

Change-Id: Iaf3b599a13a756262d3f36bae60de4f7fd00e7dc
Signed-off-by: Aaron Durbn <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/22881
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>

src/soc/intel/cannonlake/Kconfig

@@ -69,7 +69,6 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_SPI
 	select SOC_INTEL_COMMON_BLOCK_TIMER
 	select SOC_INTEL_COMMON_BLOCK_UART
-	select SOC_INTEL_COMMON_SPI_FLASH_PROTECT
 	select SOC_INTEL_COMMON_RESET
 	select SSE2
 	select SUPPORT_CPU_UCODE_IN_CBFS