package: optee-client: fix identation issues

Fix issues reported by utils/check-package:
    package/optee-client/S30optee:40: should be indented with tabs (http://nightly.buildroot.org/#adding-packages-start-script)
    package/optee-client/S30optee:46: should be indented with tabs (http://nightly.buildroot.org/#adding-packages-start-script)
    package/optee-client/S30optee:47: should be indented with tabs (http://nightly.buildroot.org/#adding-packages-start-script)
    package/optee-client/S30optee:48: should be indented with tabs (http://nightly.buildroot.org/#adding-packages-start-script)
    package/optee-client/S30optee:0: filename should be S<number><number><daemon name> (http://nightly.buildroot.org/#adding-packages-start-script

)
    package/optee-client/S30tee-supplicant:0: run 'shellcheck' and fix the warnings

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
[yann.morin.1998@free.fr:
  - fix shellcheck SC2086
  - rename the file
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>