tools/mkimage: fix build on MacOS arm64

Fixed -no-pie compilation warning on MacOS
Fixed errors related to using absolute addressing on MacOS arm64

Based on upstream patch from Jessica Clarke and suggestions from Ronny Kotzschmar

Link to original patch and discussion:
3b142045e8

Signed-off-by: Sergey V. Lobanov <sergey@lobanov.in>

tools/mkimage/patches/090-macos-arm64-builing-fix.patch

@@ -0,0 +1,47 @@
+This patch fixes compilation issues on MacOS arm64.
+Based on discussion 
+https://github.com/u-boot/u-boot/commit/3b142045e8a7f0ab17b6099e9226296af45967d0
+
+diff --git a/Makefile b/Makefile
+index b4f1cbc..551041f 100644
+--- a/Makefile
++++ b/Makefile
+@@ -324,11 +324,6 @@ HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
+ KBUILD_HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
+ KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
+ 
+-# since Lion (10.7) ASLR is on by default, but we use linker generated lists
+-# in some host tools which is a problem then ... so disable ASLR for these
+-# tools
+-KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
+-
+ # macOS Mojave (10.14.X) 
+ # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
+ KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
+diff --git a/tools/imagetool.h b/tools/imagetool.h
+index 8726792..d1b72ef 100644
+--- a/tools/imagetool.h
++++ b/tools/imagetool.h
+@@ -270,17 +270,20 @@ int rockchip_copy_image(int fd, struct image_tool_params *mparams);
+  *  b) we need a API call to get the respective section symbols */
+ #if defined(__MACH__)
+ #include <mach-o/getsect.h>
++#include <mach-o/dyld.h>
+ 
+ #define INIT_SECTION(name)  do {					\
+ 		unsigned long name ## _len;				\
+-		char *__cat(pstart_, name) = getsectdata("__TEXT",	\
++		char *__cat(pstart_, name) = getsectdata("__DATA",	\
+ 			#name, &__cat(name, _len));			\
++			__cat(pstart_, name) +=				\
++				_dyld_get_image_vmaddr_slide(0);	\
+ 		char *__cat(pstop_, name) = __cat(pstart_, name) +	\
+ 			__cat(name, _len);				\
+ 		__cat(__start_, name) = (void *)__cat(pstart_, name);	\
+ 		__cat(__stop_, name) = (void *)__cat(pstop_, name);	\
+ 	} while (0)
+-#define SECTION(name)   __attribute__((section("__TEXT, " #name)))
++#define SECTION(name)   __attribute__((section("__DATA, " #name)))
+ 
+ struct image_type_params **__start_image_type, **__stop_image_type;
+ #else