ti: k3: common: Only enable caches early

We can enter and exit coherency without any software operations,
but HW_ASSISTED_COHERENCY has stronger implications that are
causing issues. Until these can be resolved, only use the weaker
WARMBOOT_ENABLE_DCACHE_EARLY flag.
Signed-off-by: Andrew F. Davis <afd@ti.com>

plat/ti/k3/common/plat_common.mk

@@ -12,7 +12,7 @@ COLD_BOOT_SINGLE_CPU	:=	1
 PROGRAMMABLE_RESET_ADDRESS:=	1
 
 # System coherency is managed in hardware
-HW_ASSISTED_COHERENCY	:=	1
+WARMBOOT_ENABLE_DCACHE_EARLY:=	1
 USE_COHERENT_MEM	:=	0
 
 ERROR_DEPRECATED	:=	1