drivers/bluetooth/hci: enable BT_SILABS_HCI on EFR32BG27

This commit enabled the Silicon Labs Bluetooth interface driver on the
EFR32BG27 SoC series in the Kconfig.

Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
diff --git a/drivers/bluetooth/hci/Kconfig b/drivers/bluetooth/hci/Kconfig
index 93b9ab5..d7ac4f5 100644
--- a/drivers/bluetooth/hci/Kconfig
+++ b/drivers/bluetooth/hci/Kconfig
@@ -58,7 +58,7 @@
 
 config BT_SILABS_HCI
 	bool "Silicon Labs Bluetooth interface"
-	depends on SOC_SERIES_EFR32BG22 || SOC_SERIES_EFR32MG24
+	depends on SOC_SERIES_EFR32BG22 || SOC_SERIES_EFR32MG24 || SOC_SERIES_EFR32BG27
 	depends on !PM || SOC_GECKO_PM_BACKEND_PMGR
 	select ENTROPY_GENERATOR
 	select MBEDTLS
diff --git a/west.yml b/west.yml
index 92cd0a4..1d805a1 100644
--- a/west.yml
+++ b/west.yml
@@ -126,7 +126,7 @@
       groups:
         - hal
     - name: hal_silabs
-      revision: cee0e7704ece414924734cb422a6f346e13e71e5
+      revision: a143f03e846eb1b7b3135f3c8192820ce1b6d9c4
       path: modules/hal/silabs
       groups:
         - hal