Fix Nissan TPMS pressure_PSI key (#2915)

* The pressure unit should be pressure_PSI, not pressure_psi

Author: gson1703

src/devices/tpms_nissan.c

@@ -62,7 +62,7 @@ static int tpms_nissan_decode(r_device *decoder, bitbuffer_t *bitbuffer, unsigne
             "type",             "",             DATA_STRING, "TPMS",
             "id",               "",             DATA_STRING, id_str,
             "mode",             "",             DATA_INT,    mode,
-            "pressure_psi",     "Pressure",     DATA_FORMAT, "%.1f PSI", DATA_DOUBLE, pressure_psi,
+            "pressure_PSI",     "Pressure",     DATA_FORMAT, "%.1f PSI", DATA_DOUBLE, pressure_psi,
             "unknown",          "",             DATA_INT,    unknown,
             NULL);
     /* clang-format on */
@@ -98,7 +98,7 @@ static char const *const output_fields[] = {
         "type",
         "id",
         "mode",
-        "pressure_psi",
+        "pressure_PSI",
         "unknown",
         NULL,
 };