msm_serial_hs_hwreg.h: Correcting the even parity and odd parity bits

Currently parity bits are defined to be used with UART_DM_MR2
register with PARITY_MODE Bit as below :
EVEN_PARTIY = 1 and ODD_PARITY = 2
With these values, UART functionality doesn't work after enabling parity.
Hence adding correct used PARITY_MODE bits value as
EVEN_PARITY = 2 and ODD_PARITY = 1
after confirming with UART hardware programming guide.

CRs-Fixed: 410377
Signed-off-by: Saket Saurabh <ssaurabh@codeaurora.org>
(cherry picked from commit fd40e5f6313fbc74e8897927be1004faa5d9df08)

Change-Id: Ia7461d1983336b1d965498ede00001cc67c1d925
Signed-off-by: Ramakrishna Prasad N <crpn@codeaurora.org>