arm-bsp/trusted-firmware-a: upgrade TC to 2.6

Upgrade TC's TF-A from a post-2.5 snapshot to the 2.6 release.

This means increasing the maximum size of BL31.

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm-bsp/conf/machine/include/tc.inc

@@ -21,8 +21,6 @@ UBOOT_SIGN_KEYNAME = "dev_key"
 UBOOT_SIGN_KEYDIR = "${DEPLOY_DIR_IMAGE}/keys"
 FIT_GENERATE_KEYS = "1"
 
-PREFERRED_VERSION_trusted-firmware-a ?= "2.5%"
-
 PREFERRED_PROVIDER_virtual/kernel ?= "linux-arm64-ack"
 PREFERRED_VERSION_linux-arm64-ack ?= "5.10"
 

meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/0001-plat-tc-Increase-maximum-BL2-size.patch

@@ -27,8 +27,17 @@ index ccabced9e..f45457b9f 100644
 -# define PLAT_ARM_MAX_BL2_SIZE		0x14000
 +# define PLAT_ARM_MAX_BL2_SIZE		0x16000
  #endif
- 
+
  /*
+@@ -130,7 +130,7 @@
+  * calculated using the current BL31 PROGBITS debug size plus the sizes of
+  * BL2 and BL1-RW
+  */
+-#define PLAT_ARM_MAX_BL31_SIZE		0x3F000
++#define PLAT_ARM_MAX_BL31_SIZE		0x4F000
+
+ /*
+  * Size of cacheable stacks
 -- 
 2.17.1
 

meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-tc.inc

@@ -1,10 +1,5 @@
 # TC0 specific TFA configuration
 
-# Intermediate SHA with 2.5 baseline version
-SRCREV_tfa = "34a87d74d9fbbe8037431ea5101110a9f1cf30e1"
-PV = "2.5+git${SRCPV}"
-LIC_FILES_CHKSUM = "file://docs/license.rst;md5=b2c740efedc159745b9b31f88ff03dde"
-
 DEPENDS += "scp-firmware util-linux-native gptfdisk-native"
 
 SRC_URI:append = " \