soc/amd/*: Move selection of DRIVERS_I2C_DESIGNWARE to common block

All AMD SoCs which select SOC_AMD_COMMON_BLOCK_I2C also select
DRIVERS_I2C_DESIGNWARE, so make the pairing explicit by moving the
selection into SOC_AMD_COMMON_BLOCK_I2C. This will facilitating adding
the Designware I2C bus ops handler in a subsequent commit.

Change-Id: Ice30c8806766deb9a6ba617c3e633ab069af3b46
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65231
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>

src/soc/amd/picasso/Kconfig

@@ -18,7 +18,6 @@ config CPU_SPECIFIC_OPTIONS
 	select ARCH_X86
 	select BOOT_DEVICE_SUPPORTS_WRITES if BOOT_DEVICE_SPI_FLASH
 	select CONSOLE_CBMEM_PRINT_PRE_BOOTBLOCK_CONTENTS if VBOOT_STARTS_BEFORE_BOOTBLOCK
-	select DRIVERS_I2C_DESIGNWARE
 	select DRIVERS_USB_PCI_XHCI
 	select FSP_COMPRESS_FSP_M_LZMA
 	select FSP_COMPRESS_FSP_S_LZMA