linux-user: Split loader-related prototypes into loader.h

Split guest-binary loader prototypes out into a new header
loader.h which we include only where required.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210908154405.15417-5-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/linux-user/flatload.c b/linux-user/flatload.c
index 3e5594c..7484a4a 100644
--- a/linux-user/flatload.c
+++ b/linux-user/flatload.c
@@ -36,6 +36,7 @@
 #include "qemu/osdep.h"
 
 #include "qemu.h"
+#include "loader.h"
 #include "flat.h"
 #include "target_flat.h"