hosted/jlink: fixup! Query and log extended capabilities

* Try to print extended capabilities. If the adapter doesn't advertise
  support for them, then just print standard capabilities, like it was before.

src/platforms/hosted/jlink.c

@@ -333,10 +333,9 @@ static bool jlink_get_extended_capabilities(void)
 		return false;
 
 	uint32_t ext_caps[4];
-	ext_caps[0] = read_le4(buffer, 0);
-	ext_caps[1] = read_le4(buffer, 4);
-	ext_caps[2] = read_le4(buffer, 8);
-	ext_caps[3] = read_le4(buffer, 12);
+	for (size_t i = 0; i < 4; i++)
+		ext_caps[i] = read_le4(buffer, i * 4U);
+
 	DEBUG_INFO("Extended capabilities: 0x%08" PRIx32, ext_caps[0]);
 	DEBUG_INFO(" 0x%08" PRIx32 " 0x%08" PRIx32 " 0x%08" PRIx32 "\n", ext_caps[1], ext_caps[2], ext_caps[3]);
 
@@ -350,11 +349,10 @@ static bool jlink_get_capabilities(void)
 		return false;
 
 	jlink.capabilities = read_le4(buffer, 0);
-	DEBUG_INFO("Capabilities: 0x%08" PRIx32 "\n", jlink.capabilities);
-
 	if (jlink.capabilities & JLINK_CAPABILITY_EXTENDED_CAPABILITIES)
-		jlink_get_extended_capabilities();
+		return jlink_get_extended_capabilities();
 
+	DEBUG_INFO("Capabilities: 0x%08" PRIx32 "\n", jlink.capabilities);
 	return true;
 }