Added LANA TNY board #164

The LANA TNY is a development board by Phyx based on the CH32V203G6U6.
It is sold through the official Adafruit store: here
It is comparable to the already added Adafruit QT Py CH32V203 (in pull request #136) but has some extra GPIO pins exposed and some slightly different pin arrangement.
openwch/arduino_core_ch32#164

Author: jobitjoseph

variants/CH32V20x/CH32V203G6_LANA_TNY/PinNamesVar.h

@@ -0,0 +1,53 @@
+/* Alternate pin name */
+PA_0_ALT1  = PA_0  | ALT1,
+PA_1_ALT1  = PA_1  | ALT1,
+PA_2_ALT1  = PA_2  | ALT1,
+PA_3_ALT1  = PA_3  | ALT1,
+PA_4_ALT1  = PA_4  | ALT1,
+PA_5_ALT1  = PA_5  | ALT1,
+PA_6_ALT1  = PA_6  | ALT1,
+PA_7_ALT1  = PA_7  | ALT1,
+PA_8_ALT1  = PA_8  | ALT1,
+PA_9_ALT1  = PA_9  | ALT1,
+PA_10_ALT1 = PA_10 | ALT1,
+PA_11_ALT1 = PA_11 | ALT1,
+PA_15_ALT1 = PA_15 | ALT1,
+PB_0_ALT1  = PB_0  | ALT1,
+PB_0_ALT2  = PB_0  | ALT2,
+PB_1_ALT1  = PB_1  | ALT1,
+PB_1_ALT2  = PB_1  | ALT2,
+PB_3_ALT1  = PB_3  | ALT1,
+PB_10_ALT1 = PB_10 | ALT1,
+PB_11_ALT1 = PB_11 | ALT1,
+
+/* SYS_WKUP */
+#ifdef PWR_WAKEUP_PIN1
+  SYS_WKUP1 = PA_0,
+#endif
+#ifdef PWR_WAKEUP_PIN2
+  SYS_WKUP2 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN3
+  SYS_WKUP3 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN4
+  SYS_WKUP4 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN5
+  SYS_WKUP5 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN6
+  SYS_WKUP6 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN7
+  SYS_WKUP7 = NC,
+#endif
+#ifdef PWR_WAKEUP_PIN8
+  SYS_WKUP8 = NC,
+#endif
+
+/* USB */
+#ifdef USBCON
+  USB_DM = PA_11,
+  USB_DP = PA_12,
+#endif