Cargo: Bump smoltcp version from 0.7 to 0.8

Examples are not yet ported.

Signed-off-by: Moritz Scheuren <moritz.scheuren@systec-electronic.com>

Author: systec-ms

Cargo.toml

@@ -19,16 +19,16 @@ features = [ "smi", "smoltcp-phy", "stm32f429" ]
 
 [dependencies]
 volatile-register = "0.2"
-aligned = "0.3"
-stm32f7xx-hal = {version = "0.6.0", optional = true}
-stm32f4xx-hal = {version = "0.10.1", optional = true}
+aligned = "0.4"
+stm32f7xx-hal = {git = "https://github.com/stm32-rs/stm32f7xx-hal", rev = "d632a5c", optional = true}
+stm32f4xx-hal = {version = "0.10", optional = true}
 cortex-m = "0.7"
 log = { version = "0.4", optional = true }
 
 [dependencies.smoltcp]
-version = "0.7"
+version = "0.8"
 default-features = false
-features = ["ethernet", "proto-ipv4"]
+features = ["medium-ethernet", "proto-ipv4"]
 optional = true
 
 [features]