staging: gasket: Remove unnecessary line-breaks in function signatures

This patch fixes the function signatures for gasket_read_page_table_size,
gasket_read_simple_page_table_size, gasket_partition_page_table,
gasket_config_coherent_allocator to avoid  the checkpatch.pl warning:

	CHECK: Lines should not end with a '('

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Link: https://lore.kernel.org/r/20190816213702.32116-1-sylphrenadin@gmail.com


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