ASoC: wcd9304: Fix incorrect detection of headphone

On slow insertion of headphone, if the v_hs_max value
is too high, it can be detected as headset instead of
lineout when the mic is floating. Adjust the value of
v_hs_max to correct plug type detection.

CRs-Fixed: 507511
Change-Id: I80a54aac1555d1e81bf75ace6a7e3ca5f6114706
Signed-off-by: Simmi Pateriya <simmip@codeaurora.org>