package/angularjs: fix license file hash

package/angularjs: fix license file hash

The update of angularjs to 1.7.8 in commit
00dcde3eb12d194d31356fd6e54c0328acd371a1 broke legal-info for this
package, because the hash of the license file changed.

In fact, we are using angular.js as the license file and obviously it
is likely to change between each release. The new angular.js still
specifies a MIT license, so we can update the license file hash.

Fixes:

  http://autobuild.buildroot.net/results/0b8ad8d8384d605c2230e862548ccaba1f06d9b0/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>