staging: rtl8723bs: replace ternary statement with min_t macro

Ternary statements that pick the min of two values can be replaced by
the macro min_t(). This improves readability, since its quicker to
understand min_t(type, x, y) than x < y ? x : y. Issue found by
coccicheck.

Signed-off-by: Emily Peri <eperi1024@gmail.com>
Link: https://lore.kernel.org/r/Y1wh1zYMAbbKSrGB@marshmallow


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