fix: increase TSRAM to 384KB for fvp-errata-abi-a710 build

This helps to resolve the following build fail:

aarch64-none-elf-ld.bfd: BL31 progbits has exceeded its limit. Consider disabling some features.
make: *** [Makefile:1497: /home/buildslave/workspace/tf-a-builder/trusted-firmware-a/build/fvp/debug/bl31/bl31.elf] Error 1

Signed-off-by: Arvind Ram Prakash <arvind.ramprakash@arm.com>
Change-Id: I044986c86b2020ae0df53833c2ac377cd4a36cff
diff --git a/tf_config/fvp-errata-abi-a710 b/tf_config/fvp-errata-abi-a710
index f787ae0..45b87e3 100644
--- a/tf_config/fvp-errata-abi-a710
+++ b/tf_config/fvp-errata-abi-a710
@@ -1,5 +1,6 @@
 CROSS_COMPILE=aarch64-none-elf-
 CTX_INCLUDE_AARCH32_REGS=0
+FVP_TRUSTED_SRAM_SIZE=384
 ERRATA_A710_1987031=1
 ERRATA_A710_2008768=1
 ERRATA_A710_2017096=1