Fix Makefile, remove martos library linking #373

Job	Run time
build	4s
clippy	5s
fmt	5s
mips64-rust-example-dynamic-memory	1m 19s
mips64-rust-example-hello-world	1m 44s
mips64-rust-example-timer	1m 17s
mips64-static-library	1m 21s
risc-v-esp32c6-rust-example-dynamic-memory	1m 36s
risc-v-esp32c6-rust-example-hello-world	1m 43s
risc-v-esp32c6-rust-example-timer	1m 44s
risc-v-esp32c6-rust-example-wifi	1m 40s
risc-v-esp32c6-static-library	1m 45s
test	20s
xtensa-esp32-rust-example-dynamic-memory	1m 37s
xtensa-esp32-rust-example-hello-world	1m 37s
xtensa-esp32-rust-example-timer	1m 36s
xtensa-esp32-rust-example-wifi	1m 47s
xtensa-esp32-static-library	1m 45s
xtensa-esp32-c-example	44s
	23m 49s

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