package/cutelyst: fix build dependencies

This commit adds missing optional dependencies on libpwquality and
jemalloc.

The optional dependency on grantlee is removed, because it fails to
build, so we explicitly disable grantlee support.

  http://autobuild.buildroot.net/results/ecbe25728a81f13e35a4315b64aacb8e592f5867/ (jemalloc)
  http://autobuild.buildroot.net/results/84c29fc0d6212f33ff1efdf8495cbb84e4eeed65/

 (grantlee)

Signed-off-by: Daniel Nicoletti <dantti12@gmail.com>
[Thomas: explicitly disable grantlee support.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>