OMAP2 clock: don't compile OMAP2430-only functions on non-2430 builds
OMAP2 clock: don't compile OMAP2430-only functions on non-2430 builds

omap2430_clk_i2chs_find_idlest() doesn't need to be compiled in on
non-2430 builds, so skip it in those cases to save memory.

Signed-off-by: Paul Walmsley <a027184a55211cd23e3f3094f1fdc728df5e0500@pwsan.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas