package/python-urwid: fix typo

Fix the following build failure raised since commit
1c10095945b2b9a0168e2a8f98a5c6a396b2c0cd:

WARNING: unmet direct dependencies detected for BR2_PACKAGE_PYTHON_URWID
  Depends on [n]: (BR2_PACKAGE_PYTHON [=n] || BR2_PACKAGE_PYTHON3 [=y]) && BR2_PACAKGE_PYTHON3
  Selected by [y]:
  - BR2_PACKAGE_PYTHON_CONFIGSHELL_FB [=y] && (BR2_PACKAGE_PYTHON [=n] || BR2_PACKAGE_PYTHON3 [=y]) && BR2_PACKAGE_PYTHON3 [=y]

Fixes:
 - No autobuilder failures

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/python-urwid/Config.in

@@ -1,6 +1,6 @@
 config BR2_PACKAGE_PYTHON_URWID
 	bool "python-urwid"
-	depends on BR2_PACAKGE_PYTHON3
+	depends on BR2_PACKAGE_PYTHON3
 	help
 	  Urwid is a console user interface library for Python