thermal: tegra_soctherm: fix sign bit of temperature

The sign bit of temperature readback is bit 0, not bit 1.
Change to BIT(0) to fix it.

Signed-off-by: Wei Ni <wni@nvidia.com>
Reviewed-by: Matt Longnecker <mlongnecker@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

drivers/thermal/tegra_soctherm.c

@@ -57,7 +57,7 @@
 #define READBACK_VALUE_MASK			0xff00
 #define READBACK_VALUE_SHIFT			8
 #define READBACK_ADD_HALF			BIT(7)
-#define READBACK_NEGATE				BIT(1)
+#define READBACK_NEGATE				BIT(0)
 
 #define FUSE_TSENSOR8_CALIB			0x180
 #define FUSE_SPARE_REALIGNMENT_REG_0		0x1fc