ci: add arm emulator build in github actions

[vdovhanych]

No description provided.

[mmilata]

We had hardcoded x86 target for bootloader emulator, please apply following patch:

diff --git a/core/SConscript.bootloader_emu b/core/SConscript.bootloader_emu
index fb254c8765..a9083f8c6a 100644
--- a/core/SConscript.bootloader_emu
+++ b/core/SConscript.bootloader_emu
@@ -256,7 +256,7 @@ cmake_gen = env.Command(
 # Rust library
 #
 
-RUST_TARGET = 'x86_64-unknown-linux-gnu'
+RUST_TARGET = os.popen("rustc -vV | sed -n 's/host: //p'").read().strip()
 RUST_LIB = 'trezor_lib'
 
 if ARGUMENTS.get('TREZOR_EMULATOR_DEBUGGABLE', '0') == '1':

[vdovhanych]

We had hardcoded x86 target for bootloader emulator, please apply following patch:

diff --git a/core/SConscript.bootloader_emu b/core/SConscript.bootloader_emu
index fb254c8765..a9083f8c6a 100644
--- a/core/SConscript.bootloader_emu
+++ b/core/SConscript.bootloader_emu
@@ -256,7 +256,7 @@ cmake_gen = env.Command(
 # Rust library
 #
 
-RUST_TARGET = 'x86_64-unknown-linux-gnu'
+RUST_TARGET = os.popen("rustc -vV | sed -n 's/host: //p'").read().strip()
 RUST_LIB = 'trezor_lib'
 
 if ARGUMENTS.get('TREZOR_EMULATOR_DEBUGGABLE', '0') == '1':

thanks, it's working with this.