Invalidate dcache build option for bl2 entry at EL3

Some of the platform (ie. Agilex) make use of CCU IPs which will only be
initialized during bl2_el3_early_platform_setup. Any operation to the
cache beforehand will crash the platform. Hence, this will provide an
option to skip the data cache invalidation upon bl2 entry at EL3

Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: I2c924ed0589a72d0034714c31be8fe57237d1f06
diff --git a/plat/intel/soc/agilex/platform.mk b/plat/intel/soc/agilex/platform.mk
index 5d20462..d1ea629 100644
--- a/plat/intel/soc/agilex/platform.mk
+++ b/plat/intel/soc/agilex/platform.mk
@@ -70,5 +70,6 @@
 
 PROGRAMMABLE_RESET_ADDRESS	:= 0
 BL2_AT_EL3			:= 1
+BL2_INV_DCACHE			:= 0
 MULTI_CONSOLE_API		:= 1
 USE_COHERENT_MEM		:= 1