Update SCP Arm Embedded GCC to 9-2020-q2

Change-Id: I2470f1c375651b8303a13b885c6cd86ab436ca13
Signed-off-by: Chris Kay <chris.kay@arm.com>
diff --git a/scp_config/fvp-sgm775 b/scp_config/fvp-sgm775
index 6b618c9..c5ce872 100644
--- a/scp_config/fvp-sgm775
+++ b/scp_config/fvp-sgm775
@@ -1,2 +1,2 @@
-CC=/arm/pdsw/tools/gcc-arm-none-eabi-5_4-2016q3/bin/arm-none-eabi-gcc
+CC=/arm/pdsw/downloads/scp-models/tools/gcc-arm-none-eabi-9-2020-q2-update/bin/arm-none-eabi-gcc
 PRODUCT=sgm775