Blackfin: bf537: fix L1 data defines

The __BFIN_DEF_ADSP_BF537_proc__ define isn't setup anymore, so use
the one coming from the compiler.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

arch/blackfin/include/asm/mach-bf537/BF534_def.h

@@ -10,7 +10,7 @@
 
 #include "ADSP-EDN-BF534-extended_def.h"
 
-#if defined(__BFIN_DEF_ADSP_BF537_proc__) || !defined(__BFIN_DEF_ADSP_BF536_proc__)
+#if !defined(__ADSPBF536__)
 #define L1_DATA_A_SRAM 0xFF800000 /* 0xFF800000 -> 0xFF803FFF Data Bank A SRAM */
 #define L1_DATA_A_SRAM_SIZE (0xFF803FFF - 0xFF800000 + 1)
 #define L1_DATA_A_SRAM_END (L1_DATA_A_SRAM + L1_DATA_A_SRAM_SIZE)