mach-snapdragon: fix erroneous lmb allocations

mach-snapdragon: fix erroneous lmb allocations

In commit 6e4675b8e5d8 ("lmb: replace the lmb_alloc() and
lmb_alloc_base() API's") an additional allocation was mistakenly
introduced resulting in ${kernel_comp_size} containing the address of a
second 64mb region rather than the actual value of KERNEL_COMP_SIZE.

Additionally, in commit b40d7b8f72f1 ("Merge patch series "lmb: use
a single API for all allocations"") merge conflict resulted in an
additional 128mb allocation for ${loadaddr} when CONFIG_FASTBOOT
is enabled, where it should actually be set to the same value as
${fastboot_addr_r} to respect size constraints (and since it doesn't
seem to interfer with any bootflows).

Fixup both of these, freeing up 192mb of memory.

Fixes: 6e4675b8e5d8 ("lmb: replace the lmb_alloc() and lmb_alloc_base() API's")
Fixes: b40d7b8f72f1 ("Merge patch series "lmb: use a single API for all allocations"")
Link: https://lore.kernel.org/r/20250811104710.1896382-1-casey.connolly@linaro.org
Signed-off-by: Casey Connolly <casey.connolly@linaro.org>