[nrf fromtree] boards: lilygo: ttgo_t7v1_5: Fix twister identifier

Due to a copy-paste error, it duplicated `ttgo_lora32/esp32/procpu`.
Also, remove the `lora` tag, as it seems to be omitted from devicetree.

Signed-off-by: Grzegorz Swiderski <[email protected]>
(cherry picked from commit c074661)

Author: 57300

boards/lilygo/ttgo_t7v1_5/ttgo_t7v1_5_esp32_procpu.yaml

@@ -1,5 +1,5 @@
-identifier: ttgo_lora32/esp32/procpu
-name: TTGO LoRa32 PROCPU
+identifier: ttgo_t7v1_5/esp32/procpu
+name: TTGO T7 V1.5 PROCPU
 type: mcu
 arch: xtensa
 toolchain:
@@ -12,6 +12,5 @@ supported:
   - uart
   - pinmux
   - display
-  - lora
   - nvs
 vendor: lilygo