soc/amd/picasso: select ADD_FSP_BINARIES if USE_AMD_BLOBS is selected

Since the FSP binaries for Picasso are present in the amd_blobs repo,
select the ADD_FSP_BINARIES option if the Kconfig option to check out
that repo is set.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9a8571730cf271ad5e113e5df87700882b3c5475
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57348
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/soc/amd/picasso/Kconfig

@@ -18,6 +18,7 @@ config CPU_SPECIFIC_OPTIONS
 	select X86_AMD_FIXED_MTRRS
 	select X86_AMD_INIT_SIPI
 	select ACPI_SOC_NVS
+	select ADD_FSP_BINARIES if USE_AMD_BLOBS
 	select DRIVERS_I2C_DESIGNWARE
 	select DRIVERS_USB_PCI_XHCI
 	select GENERIC_GPIO_LIB