ppc: Move fpga_state to arch_global_data

Move this field into arch_global_data and tidy up.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/powerpc/include/asm/global_data.h b/arch/powerpc/include/asm/global_data.h
index 6f88b76..52aece0 100644
--- a/arch/powerpc/include/asm/global_data.h
+++ b/arch/powerpc/include/asm/global_data.h
@@ -122,6 +122,9 @@
 #if defined(CONFIG_SYS_GT_6426x)
 	unsigned int mirror_hack[16];
 #endif
+#ifdef CONFIG_SYS_FPGA_COUNT
+	unsigned fpga_state[CONFIG_SYS_FPGA_COUNT];
+#endif
 };
 
 /*
@@ -170,9 +173,6 @@
 #if defined(CONFIG_LWMON) || defined(CONFIG_LWMON5)
 	unsigned long kbd_status;
 #endif
-#ifdef CONFIG_SYS_FPGA_COUNT
-	unsigned fpga_state[CONFIG_SYS_FPGA_COUNT];
-#endif
 #if defined(CONFIG_WD_MAX_RATE)
 	unsigned long long wdt_last;	/* trace watch-dog triggering rate */
 #endif