Spes: rootdir: fstab: Add entry for mounting sdcard in recovery

Taken from lahaina tree [1], this is required for qcom's
custom logic for mounting sdcard in recovery [2][3].
[1]: https://git.codelinaro.org/clo/la/platform/vendor/qcom/lahaina/-/blob/LA.UM.9.14.r1-20200.01-LAHAINA.QSSI12.0/recovery.fstab#L36
[2]: AOSPA/android_bootable_recovery@812c1a9
[3]: AOSPA/android_bootable_recovery@2e15090

* [1]: lahaina >>> steppe
* [1]: https://git.codelinaro.org/clo/la/platform/vendor/qcom/steppe/-/blob/LA.UM.9.1.r1-13500-SMxxx0.QSSI13.0/recovery_non-AB_dynamic_variant.fstab#L38

Signed-off-by: chrisl7 <wandersonrodriguesf1@gmail.com>

rootdir/etc/fstab.qcom

@@ -48,6 +48,7 @@ product                                                 /product               e
 /devices/platform/soc/4784000.sdhci/mmc_host*           /storage/sdcard1       vfat    nosuid,nodev                                         wait,voldmanaged=sdcard1:auto,encryptable=footer
 /devices/platform/soc/1da4000.ufshc_card/host*          /storage/sdcard1       vfat    nosuid,nodev                                         wait,voldmanaged=sdcard1:auto,encryptable=footer
 /devices/platform/soc/*.ssusb/*.dwc3/xhci-hcd.*.auto*   /storage/usbotg        vfat    nosuid,nodev    wait,voldmanaged=usbotg:auto
+/dev/block/mmcblk1p1                                    /sdcard                vfat    nosuid,nodev    wait,recoveryonly
 /dev/block/bootdevice/by-name/modem                     /vendor/firmware_mnt   vfat    ro,shortname=lower,uid=1000,gid=1000,dmask=227,fmask=337,context=u:object_r:firmware_file:s0 wait,slotselect
 /dev/block/bootdevice/by-name/dsp                       /vendor/dsp            ext4    ro,nosuid,nodev,barrier=1                            wait,slotselect
 /dev/block/bootdevice/by-name/bluetooth                 /vendor/bt_firmware    vfat    ro,shortname=lower,uid=1002,gid=3002,dmask=227,fmask=337,context=u:object_r:bt_firmware_file:s0 wait,slotselect