nrf52x: fix QSPI enable flag

QSPI feature was mistakenly moved form target nrf52840 to nrf52832
while rebasing. This change fixes it

Author: maciejbocianski

targets/targets.json

@@ -3873,8 +3873,7 @@
             "SPI_ASYNCH",
             "STCLK_OFF_DURING_SLEEP",
             "TRNG",
-            "USTICKER",
-            "QSPI"
+            "USTICKER"
         ],
         "extra_labels": [
             "NORDIC",
@@ -3979,7 +3978,8 @@
             "SPI_ASYNCH",
             "STCLK_OFF_DURING_SLEEP",
             "TRNG",
-            "USTICKER"
+            "USTICKER",
+            "QSPI"
         ],
         "extra_labels": [
             "NORDIC",