ARM: dts: msm: remove hph_en nodes for sdm660 qrd

HIFI headphone path is not present in sdm660 qrd board.
So there is no need to add these two hph_en nodes under tasha node.
These two nodes get initialized by msm_cdc_pinctrl driver and make
gpio24/25 as output low, which causes some power leakage.
Remove these two hph_en nodes for sdm660 qrd.

Change-Id: I527ce45296cd3b168bea67804e0909f668f74221
CRs-Fixed: 2011375
Signed-off-by: Walter Yang <yandongy@codeaurora.org>