Add EFM32GG support

Fixes #32
(#32)

Author: niklarm

mbed_app.json

@@ -3,6 +3,10 @@
         "*": {
             "target.features_add": ["UVISOR"],
             "target.extra_labels_add": ["UVISOR_SUPPORTED"]
+        },
+        "EFM32GG_STK3700": {
+            "target.features_add": ["UVISOR"],
+            "target.extra_labels_add": ["UVISOR_SUPPORTED"]
         }
     },
     "macros": [

source/main-hw.h

@@ -45,6 +45,26 @@
         {SPI0,   sizeof(*SPI0),   UVISOR_TACLDEF_PERIPH}, \
     }
 
+#elif defined (TARGET_EFM32GG_STK3700)
+
+#define MAIN_LED           LED1
+#define SECURE_LED         LED2
+#define LED_ON             true
+#define LED_OFF            false
+#define SECURE_SWITCH      SW2
+#define SECURE_SWITCH_PULL PullUp
+
+#define MAIN_ACL(acl_list_name) \
+    static const UvisorBoxAclItem acl_list_name[] = {     \
+        {CMU,                 sizeof(*CMU),    UVISOR_TACLDEF_PERIPH}, \
+        {MSC,                 sizeof(*MSC),    UVISOR_TACLDEF_PERIPH}, \
+        {GPIO,                sizeof(*GPIO),   UVISOR_TACLDEF_PERIPH}, \
+        {TIMER0,              sizeof(*TIMER0), UVISOR_TACLDEF_PERIPH}, \
+        {UART0,               sizeof(*UART0),  UVISOR_TACLDEF_PERIPH}, \
+        {(void *) 0x0FE08000, 0x1000,          UVISOR_TACLDEF_PERIPH}, \
+        {(void *) 0x42000000, 0x2000000,       UVISOR_TACLDEF_PERIPH}, \
+    }
+
 #else /* Target-specific settings */
 
 #error "Unsupported target. Checkout the README.md file for the list of supported targets for this app."