package/nvidia-driver: fix typos in comments

Signed-off-by: Iulian Onofrei <iulian.onofrei@yahoo.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 21fca042d942e5460fd384b9f6a1eef13a191160)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nvidia-driver/nvidia-driver.mk

@@ -35,7 +35,7 @@ NVIDIA_DRIVER_PROVIDES += libgl libegl libgles
 # NVidia extensions (which is deemed bad now), while the former follows
 # the newly-introduced vendor-neutral "dispatching" API/ABI:
 #   https://github.com/aritger/linux-opengl-abi-proposal/blob/master/linux-opengl-abi-proposal.txt
-# However, this is not very usefull to us, as we don't support multiple
+# However, this is not very useful to us, as we don't support multiple
 # GL providers at the same time on the system, which this proposal is
 # aimed at supporting.
 #
@@ -84,7 +84,7 @@ endef
 # Those libraries are 'private' libraries requiring an agreement with
 # NVidia to develop code for those libs. There seems to be no restriction
 # on using those libraries (e.g. if the user has such an agreement, or
-# wants to run a third-party program developped under such an agreement).
+# wants to run a third-party program developed under such an agreement).
 ifeq ($(BR2_PACKAGE_NVIDIA_DRIVER_PRIVATE_LIBS),y)
 NVIDIA_DRIVER_LIBS += \
 	libnvidia-ifr.so.$(NVIDIA_DRIVER_VERSION) \