Reorganize libmsl

libmsl/.gitignore

@@ -1,3 +1,4 @@
+*.o
 *.json
 docs/
 .cache/

libmsl/init/__premain.c

@@ -1,6 +1,6 @@
 #include <liballoc.h>
-#include <m/system.h>
 #include <stdint.h>
+#include <system.h>
 
 extern volatile uint8_t __bss_start[];
 extern volatile uint8_t __bss_end[];

libmsl/m/.gitignore

@@ -1 +0,0 @@
-*.o

libmsl/m/src.mk

@@ -1,3 +0,0 @@
-c += m/system.c
-
-o += m/system.o

libmsl/src.mk

@@ -1,3 +1,6 @@
 include $(platform)/src.mk
 include init/src.mk
-include m/src.mk
+
+c += system.c
+
+o += system.o

libmsl/system.c

@@ -1,7 +1,7 @@
-#include <m/syscall.h>
-#include <m/system.h>
 #include <stddef.h>
 #include <stdint.h>
+#include <syscall.h>
+#include <system.h>
 
 #define do_syscall1(id, a1, a2, a3, a4, a5, a6, ...)                                               \
   syscall (id, (uintptr_t)a1, (uintptr_t)a2, (uintptr_t)a3, (uintptr_t)a4, (uintptr_t)a5,          \