Blackfin arch: Disable CACHELINE_ALIGNED_L1 for BF54x by default

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 6d23bcc..2372b03 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -540,7 +540,8 @@
 
 config CACHELINE_ALIGNED_L1
 	bool "Locate cacheline_aligned data to L1 Data Memory"
-	default y
+	default y if !BF54x
+	default n if BF54x
 	depends on !BF531
 	help
 	  If enabled cacheline_anligned data is linked