payloads/tianocore: Rename TianoCore to edk2

coreboot uses TianoCore interchangeably with EDK II, and whilst the
meaning is generally clear, it's not the payload it uses. EDK II is
commonly written as edk2.

coreboot builds edk2 directly from the edk2 repository. Whilst it
can build some components from edk2-platforms, the target is still
edk2.

[1] tianocore.org - "Welcome to TianoCore, the community supporting"
[2] tianocore.org - "EDK II is a modern, feature-rich, cross-platform
firmware development environment for the UEFI and UEFI Platform
Initialization (PI) specifications."

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I4de125d92ae38ff8dfd0c4c06806c2d2921945ab
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65820
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/drivers/smmstore/Kconfig

@@ -3,13 +3,13 @@
 config SMMSTORE
 	bool "Support for flash based, SMM mediated data store"
 	depends on BOOT_DEVICE_SUPPORTS_WRITES && HAVE_SMI_HANDLER
-	default y if PAYLOAD_TIANOCORE
+	default y if PAYLOAD_EDK2
 	select SPI_FLASH_SMM if BOOT_DEVICE_SPI_FLASH_RW_NOMMAP
 
 config SMMSTORE_V2
 	bool "Use version 2 of SMMSTORE API"
 	depends on SMMSTORE
-	default y if PAYLOAD_TIANOCORE
+	default y if PAYLOAD_EDK2
 	default n
 	help
 	  Version 2 of SMMSTORE allows secure communication with SMM and

src/drivers/smmstore/store.c

@@ -311,7 +311,7 @@ int smmstore_get_info(struct smmstore_params_info *out)
 	out->block_size = SMM_BLOCK_SIZE;
 	out->num_blocks = region_device_sz(&store) / SMM_BLOCK_SIZE;
 
-	/* FIXME: Broken EDK2 always assumes memory mapped Firmware Block Volumes */
+	/* FIXME: Broken edk2 always assumes memory mapped Firmware Block Volumes */
 	out->mmap_addr = (uintptr_t)rdev_mmap_full(&store);
 
 	printk(BIOS_DEBUG, "smm store: %d # blocks with size 0x%x\n",