Revert "all: move stm32 files to separate repository"

This reverts commit 644356c220.

src/runtime/runtime_stm32_timers.go

@@ -11,10 +11,10 @@ package runtime
 // Output Comparator used for fine-grained sleeps.
 
 import (
+	"device/stm32"
 	"machine"
 	"runtime/interrupt"
 	"runtime/volatile"
-	"tinygo.org/x/device/stm32"
 )
 
 type timerInfo struct {

src/runtime/runtime_stm32f103.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 func init() {

src/runtime/runtime_stm32f4.go

@@ -5,8 +5,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 func init() {

src/runtime/runtime_stm32f405.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 const (

src/runtime/runtime_stm32f407.go

@@ -3,7 +3,7 @@
 
 package runtime
 
-import "tinygo.org/x/device/stm32"
+import "device/stm32"
 
 /*
    clock settings

src/runtime/runtime_stm32f469.go

@@ -3,7 +3,7 @@
 
 package runtime
 
-import "tinygo.org/x/device/stm32"
+import "device/stm32"
 
 /*
    clock settings

src/runtime/runtime_stm32f7x2.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 /*

src/runtime/runtime_stm32l0.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 const (

src/runtime/runtime_stm32l0x1.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 const (

src/runtime/runtime_stm32l0x2.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 const (

src/runtime/runtime_stm32l4.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 const (

src/runtime/runtime_stm32l4x2.go

@@ -4,7 +4,7 @@
 package runtime
 
 import (
-	"tinygo.org/x/device/stm32"
+	"device/stm32"
 )
 
 /*

src/runtime/runtime_stm32l4x5.go

@@ -4,7 +4,7 @@
 package runtime
 
 import (
-	"tinygo.org/x/device/stm32"
+	"device/stm32"
 )
 
 /*

src/runtime/runtime_stm32l5x2.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 /*

src/runtime/runtime_stm32wlx.go

@@ -4,8 +4,8 @@
 package runtime
 
 import (
+	"device/stm32"
 	"machine"
-	"tinygo.org/x/device/stm32"
 )
 
 const (