.mailmap: Start to use new amd.com email address

Xilinx has been acquired by AMD that's why emails should be also updated.
The patch is updating .mailmap file and also MAINTAINERS files as was done
by commit 5cd1ecb99490 ("ppc: qemu: Update MAINTAINERS for correct email
address").
The rest of my emails are not going to change.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 3444612..f7665fc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -594,7 +594,7 @@
 N:	uniphier
 
 ARM VERSAL
-M:	Michal Simek <michal.simek@xilinx.com>
+M:	Michal Simek <michal.simek@amd.com>
 S:	Maintained
 T:	git https://source.denx.de/u-boot/custodians/u-boot-microblaze.git
 F:	arch/arm/mach-versal/
@@ -639,7 +639,7 @@
 N:	zynq
 
 ARM ZYNQMP
-M:	Michal Simek <michal.simek@xilinx.com>
+M:	Michal Simek <michal.simek@amd.com>
 S:	Maintained
 T:	git https://source.denx.de/u-boot/custodians/u-boot-microblaze.git
 F:	arch/arm/mach-zynqmp/
@@ -676,7 +676,7 @@
 N:	zynqmp
 
 ARM ZYNQMP R5
-M:	Michal Simek <michal.simek@xilinx.com>
+M:	Michal Simek <michal.simek@amd.com>
 S:	Maintained
 T:	git https://source.denx.de/u-boot/custodians/u-boot-microblaze.git
 F:	arch/arm/mach-zynqmp-r5/
@@ -852,7 +852,7 @@
 F:	test/dm/fastboot.c
 
 FPGA
-M:	Michal Simek <michal.simek@xilinx.com>
+M:	Michal Simek <michal.simek@amd.com>
 S:	Maintained
 T:	git https://source.denx.de/u-boot/custodians/u-boot-microblaze.git
 F:	drivers/fpga/