frameworks/base/docs/ndk: fix typo in landing page
frameworks/base/docs/ndk: fix typo in landing page

Change-Id: Ie792506b73e85dd58ebf481339801aa1d8036031

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base