[RSDK-9647] update 8mb partitions

[mattjperez]

previous table left 1MB of space available, this recovers that and adds the coredump partition to micro-rdk-server

[acmorrow]

This LGTM, but I would like @npmenard to sign-off as well. Also interested in his thoughts on my alternative layout. I'll ping him on that thread.

[acmorrow]

@npmenard - During review of this, I came up with the following alternative partition ordering which seems to yield a much larger NVS partition, eliminates all gaps, and gives us the same OTA sizes. I'd be interested in your thoughts:

phy_init,      data,	      phy,	     0x9000,	0x1000,
coredump,      data,	      coredump,      0x10000, 	128K,
ota_0,	       0,	      ota_0,	     0x30000,	0x3e0000,
ota_1,	       0,	      ota_1,	     0x410000,	0x3e0000,
otadata,       data,	      ota,	     0x7f0000,	0x2000,
nvs,	       data,	      nvs,	     0x7f2000,  0xe000,

Also, I'd like us to decide what should happen to the regular partitions.csv, but I'm fine with that change coming as a subsequent PR in the interest of landing this one.