Move default keys inside board definition (under 'sien' secutiry settings)

Author: cmaglie

boards.txt

@@ -81,6 +81,10 @@ envie_m7.build.header_size=0x20000
 envie_m7.build.alignment=32
 envie_m7.build.version=1.2.3+4
 envie_m7.menu.security.sien.build.postbuild.cmd="{tools.imgtool.path}/{tools.imgtool.cmd}" {tools.imgtool.build.pattern}
+## Defaults for secure boot sign and encrypt keys
+envie_m7.menu.security.sien.build.keys.path={runtime.hardware.path}/mbed/libraries/MCUboot/default_keys
+envie_m7.menu.security.sien.build.sign.name=ecdsa-p256-signing-key.pem
+envie_m7.menu.security.sien.build.encrypt.name=ecdsa-p256-encrypt-key.pem
 envie_m7.menu.security.none.build.postbuild.cmd="{tools.imgtool.path}/{tools.imgtool.cmd}" exit
 envie_m7.compiler.mbed.arch.define=
 envie_m7.compiler.mbed.defines={build.variant.path}/defines.txt

platform.txt

@@ -193,11 +193,7 @@ tools.picotool.upload.pattern="{path}/{cmd}" {upload.verbose} -D "{build.path}/{
 
 tools.imgtool.path={runtime.tools.imgtool.path}
 tools.imgtool.cmd=imgtool
-tools.imgtool.keys.path={runtime.hardware.path}/mbed/libraries/MCUboot/default_keys
-tools.imgtool.sign.name=ecdsa-p256-signing-key.pem
-tools.imgtool.encrypt.name=ecdsa-p256-encrypt-key.pem
-
-tools.imgtool.build.pattern=sign --key "{tools.imgtool.keys.path}/{tools.imgtool.sign.name}"  --encrypt "{tools.imgtool.keys.path}/{tools.imgtool.encrypt.name}" "{build.path}/{build.project_name}.bin" "{build.path}/{build.project_name}.bin" --align {build.alignment} --max-align {build.alignment} --version {build.version} --header-size {build.header_size} --pad-header --slot-size {build.slot_size}
+tools.imgtool.build.pattern=sign --key "{build.keys.path}/{build.sign.name}" --encrypt "{build.keys.path}/{build.encrypt.name}" "{build.path}/{build.project_name}.bin" "{build.path}/{build.project_name}.bin" --align {build.alignment} --max-align {build.alignment} --version {build.version} --header-size {build.header_size} --pad-header --slot-size {build.slot_size}
 
 #
 # GDB (Debugger)