arm64: dts: ti: k3-am62-lp-sk: Enable internal pulls for MMC0 data pins

arm64: dts: ti: k3-am62-lp-sk: Enable internal pulls for MMC0 data pins

AM62 LP SK board does not have external pullups on MMC0 DAT1-DAT7
pins [0]. Enable internal pullups on DAT1-DAT7 considering:
- without a host-side pullup, these lines rely solely on the eMMC
  device's internal pullup (R_int, 10-150K per JEDEC), which may
  exceed the recommended 50K max for 1.8V VCCQ
- JEDEC JESD84-B51 Table 200 requires host-side pullups (R_DAT,
  10K-100K) on all data lines to prevent bus floating

[0] https://www.ti.com/lit/zip/SPRR471

Fixes: a0b8da04153e ("arm64: dts: ti: k3-am62*: Move eMMC pinmux to top level board file")
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Moteen Shah <m-shah@ti.com>
Link: https://patch.msgid.link/20260223233731.2690472-4-jm@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>