common: always compile fixup_cmdtable()

With our optimization settings the linker eliminates unused functions.

But for debugging it is better to compile with -Og or -O0. With -O0
compiling the sandbox fails due to the missing function fixup_cmdtable()
called by dm_reloc() and others.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/common/command.c b/common/command.c
index 068cb55..3fe6791 100644
--- a/common/command.c
+++ b/common/command.c
@@ -16,6 +16,8 @@
 #include <log.h>
 #include <linux/ctype.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 /*
  * Use puts() instead of printf() to avoid printf buffer overflow
  * for long help messages
@@ -488,9 +490,6 @@
 }
 #endif
 
-#if defined(CONFIG_NEEDS_MANUAL_RELOC)
-DECLARE_GLOBAL_DATA_PTR;
-
 void fixup_cmdtable(struct cmd_tbl *cmdtp, int size)
 {
 	int	i;
@@ -535,7 +534,6 @@
 		cmdtp++;
 	}
 }
-#endif
 
 int cmd_always_repeatable(struct cmd_tbl *cmdtp, int flag, int argc,
 			  char *const argv[], int *repeatable)