staging: rtl8723bs: hal: Correct misspelt enum name

Correct misspelt enum name.
Misspelling found using checkpatch.pl.

Signed-off-by: R Veera Kumar <vkor@vkten.in>
Link: https://lore.kernel.org/r/d091fa95d537f613c24e55a2dee638d4493534b5.1586187304.git.vkor@vkten.in


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>